OSHA Porta Potty Requirements: What Eight Federal Standards Actually Say

What Are the Key OSHA Porta Potty Requirements and Statistics?

Table D-1’s first row states one facility for 20 or fewer ordinary-construction employees; its next row also begins at “20 or more,” so exactly 20 falls in both printed bands. The figures below separate regulatory text from interpretation guidance, State Plan rules, ADA design scoping, and federal penalty maximums; every line was verified against the named primary source on July 27, 2026.

1. Table D-1’s first row states one facility for 20 or fewer ordinary-construction employees; because the next row also begins at “20 or more,” exactly 20 falls in both printed bands — 29 CFR 1926.51(c)(1), verified July 27, 2026. ↓ Table D-1
2. Eight federal OSHA sanitation standards are compared in this dataset: 1926.51, 1910.141, 1928.110, 1915.88, 1910.120(n), 1926.65(n), 1917.127, and 1918.95 — verified July 27, 2026. ↓ Crosswalk
3. Two of the eight compared standards contain no employee-count table: marine terminals (29 CFR 1917.127) and longshoring (29 CFR 1918.95) require facilities “sufficient for the sanitary requirements of employees” — verified July 27, 2026. ↓ Crosswalk
4. “Less than 10 minutes” is OSHA’s general starting point for prompt construction toilet access. OSHA first stated the figure as an example for mobile crews in 2002 and expressly applied the same starting point to fixed construction sites in a February 23, 2005 interpretation; the figure is not printed in 29 CFR 1926.51. ↓ Access
5. Three minutesis the travel time Washington uses to define a “nearby facility,” and the walking time Oregon OSHA ordinarily applies to “reasonable accessibility” — WAC 296-155-140(1)(h)(iii); Oregon OSHA Program Directive A-97. ↓ State divergence
6. A dirty toilet does not count.OSHA held on May 17, 2006 that a toilet in unsanitary condition has not been “provided” under §1926.51(c)(1) and cannot be counted toward the Table D-1 minimum. ↓ Servicing
7. Once per week for up to 10 users and twice per week for 20 users are the servicing examples OSHA quoted from ANSI Z4.3-1995 in that same 2006 letter, offered as one way to guide sanitary-condition compliance, not as a federal servicing schedule. ↓ Servicing
8. The running-water lavatory provision generally does not apply to temporary construction sites. OSHA stated in a footnote to a July 20, 2005 interpretation that §1926.51(f)(3) “applies only to permanent places of employment” and that construction sites typically are not permanent places of employment. ↓ Handwashing
9. Portable toilets used exclusively by construction personnel are exempt from the ADA Standards’ §213 toilet-facility scoping and accessible-route requirements — 2010 ADA Standards §203.2, verified July 27, 2026. ↓ ADA
10. $16,550 is the maximum federal OSHA penalty per serious, other-than-serious, or posting violation for assessments after January 15, 2026, and $165,514is the maximum per willful or repeated violation — OSHA Penalties, verified July 27, 2026. ↓ Penalties
11. Federal OSHA made no inflation adjustment for 2026, so the 2025 maximum penalty amounts remained in effect. OSHA’s May 21, 2026 memorandum states that the required October 2025 CPI-U figure was unavailable. ↓ Penalties
12. California requires one washing station per 20 employees or fraction. When the station is associated with a nonwater-carriage toilet under 8 CCR §1526(c), it generally must be outside the toilet and not attached to it — 8 CCR §1527(a)(1), verified July 27, 2026. ↓ State divergence
13. Since July 1, 2025, Washington has required construction employers to provide menstrual hygiene products at no cost to workers who menstruate — WAC 296-155-140(6), adopted under RCW 49.17.530. ↓ State divergence
14. Alabama operates no OSHA-approved State Plan. Federal OSHA covers most private-sector workers in the state; Alabama state and local government workers are not covered by federal OSHA — OSHA State Plans directory, verified July 27, 2026. ↓ Alabama
15. Eleven hand-labor employees on a given day triggers the federal agricultural field-sanitation standard, which requires one toilet and one handwashing facility per 20 employees or fraction, normally within a quarter-mile walk or at the closest point of vehicular access; the facilities requirement does not apply to employees performing field work for three hours or less that day, including transportation time — 29 CFR 1928.110, verified July 27, 2026. ↓ Crosswalk

What Is on This Page?

This reference opens with the number most readers need, then shows the source text, access and servicing rules, handwashing limits, ADA and privacy distinctions, verified State Plan differences, jurisdiction, interpretation history, penalties, claim audit, methodology, limitations, dataset files, FAQs, and primary sources. Every major section and table has a stable anchor so a reader can link directly to the exact fact or comparison.

Which Eight Federal OSHA Sanitation Standards Are Compared?

This dataset compares eight federal OSHA sanitation standards that directly answer common portable-toilet questions across ordinary construction, permanent general-industry workplaces, agricultural hand-labor operations, shipyards, hazardous-waste work, marine terminals, and longshoring. They use different denominators and different tables, and two use no employee-count table at all. Each was read against its regulatory text on July 27, 2026 and normalized into the same fields below; this is a defined comparison set, not a claim that OSHA has only eight sanitation provisions.

Source: U.S. Occupational Safety and Health Administration, 29 CFR 1926.51, 1910.141, 1928.110, 1915.88, 1910.120(n), 1926.65(n), 1917.127, and 1918.95, read against the standards’ text at osha.gov and eCFR. Verified July 27, 2026.

What this table shows, and what it doesn’t

It shows that the phrase “OSHA porta potty requirements” has no single referent. At a denominator of 40 employees, ordinary construction lists one toilet seat and one urinal for 40 workers; shipyard and permanent general-industry tables list three table-listed fixtures per 40 employees of each sex; and agriculture requires two toilets plus two handwashing facilities per 40 employees. The denominator changes across standards, and all four answers are federal and current as verified July 27, 2026.

It does not decide which standard governs a specific site. That turns on the industry classification, whether the workplace is permanent, the activity being performed, and the OSHA authority with jurisdiction. It also does not conceal the printed threshold problems in the source text, which are documented below rather than silently converted into clean ranges.

How Many Porta Potties Does OSHA Require on a Construction Site?

For ordinary construction work, Table D-1’s first row states one facility for 20 or fewer employees. Its next row begins at “20 or more” and uses a seat-and-urinal ratio — one toilet seat and one urinal per 40 workers — while the third row begins at “200 or more” and uses one seat and one urinal per 50 workers; the printed rows therefore overlap at exactly 20 and 200. Under temporary field conditions, §1926.51(c)(2) requires that at least one toilet facility be available.

Table D-1, as printed

Source: 29 CFR 1926.51(c)(1), Table D-1, osha.gov. Verified July 27, 2026.

Three things about this table are routinely lost in summary. First, the higher rows specify toilet seats and urinals, not a number of prefabricated portable units; Table D-1 does not translate those fixture ratios into a single universal unit count. Second, §1926.51(c)(3) lists what may be used where there is no sanitary sewer: privies where they will not contaminate ground or surface water, chemical toilets, recirculating toilets, and combustion toilets, “unless prohibited by local codes.” Third, OSHA’s May 17, 2006 interpretation states that a unit in unsanitary condition is not genuinely “provided” and cannot be counted.

“One per 20” is not what the table says

The most common compression of this standard is “OSHA requires one porta potty per 20 workers.” That is the first row only. It is not the rule at 21 workers, where the printed language changes to a ratio built on seats and urinals rather than units. Nothing in Table D-1 says “one per 20” as a continuing ratio, and a page that presents it that way has replaced the regulation with a rounder number.

Where the printed thresholds break down

Three of the eight compared standards contain boundary language that does not resolve cleanly: ordinary construction and the two HAZWOPER sanitation tables. We report the printed text rather than repairing it, because repairing it would mean publishing a boundary OSHA did not print.

Source: comparison of the printed tables in 29 CFR 1926.51, 1910.120, 1926.65, 1910.141, 1915.88, and 1928.110. Verified July 27, 2026.

No OSHA interpretation located in the agency materials reviewed resolves the overlap at 20 and 200 in Table D-1 or the unassigned value at exactly 200 in the HAZWOPER tables. At those exact boundaries, the applicable OSHA area office or State Plan agency is the authoritative source; this dataset does not interpolate a missing answer.

How Close Must Jobsite Toilets Be?

Federal OSHA prints no distance and no travel time in 29 CFR 1926.51. It requires toilets to be “provided,” which OSHA interprets as prompt access, and the agency uses less than 10 minutes as the general starting point for assessing both fixed construction sites and the mobile-crew exception. That figure comes from interpretation letters, not from the regulatory text.

The phrase first appears in OSHA’s June 7, 2002 letter to Nicholas Mertz about §1926.51(c)(4): “For example, in general, toilets would be considered ‘nearby’ if it would take less than 10 minutes to get to them.” The letter addresses mobile crews and states that interpretation letters cannot create additional employer obligations.

OSHA then applied the same benchmark to a fixed construction site. In a February 23, 2005 letter about employees working on the tenth floor of a high-rise with toilets only at ground level, OSHA reasoned that “the most basic meaning of ‘provide’ is ‘make available’” and that toilets taking too long to reach are not available. The agency concluded that, “in general, the starting point” for assessing §1926.51(c)(1) is whether employees can reach a toilet in less than 10 minutes.

The figure is therefore real and broader than the mobile-crew example alone, but it remains interpretation guidance rather than a distance or deadline printed in the standard. Actual access also turns on delays such as elevators, stairs, transportation, and waiting lines because the purpose is prompt use when needed.

The 2002 letter is also the clearest statement of who counts as a mobile crew: workers who “continually or frequently move from jobsite to jobsite on a daily or hourly basis” qualify; workers who “report to a conventional construction project, where they work for more extended periods of time (days, weeks, or longer)” do not. A 1993 interpretation had already told the Portable Sanitation Association International that the exception targets crews such as power-transmission-line crews and that housing construction crews are not normally mobile.

The 200-foot figure has a source, and it is not federal OSHA. No universal 200-foot limit appears in 29 CFR 1926.51 or the federal interpretations reviewed. Washington’s construction rule, WAC 296-155-140(5)(c), requires sanitation facilities within 200 feet horizontally of all employees and on every third floor of a multistory structure, subject to its mobile-crew and normally-unattended-location exception. Cited as a Washington rule, the figure is accurate; cited as a federal construction rule, it is not.

Sources: OSHA 29 CFR 1926.51; OSHA interpretations dated June 7, 2002 and February 23, 2005; OSHA memorandum dated April 6, 1998; WAC 296-155-140; Oregon OSHA Program Directive A-97; and 29 CFR 1928.110. Verified July 27, 2026.

How Often Must a Construction Porta Potty Be Serviced?

Federal OSHA sets no fixed cleaning interval for ordinary construction toilets. It requires the facility to remain sanitary and available, and an unsanitary unit does not count as “provided.” In a May 17, 2006 interpretation, OSHA cited the ANSI Z4.3-1995 servicing schedule as one possible guide and gave two examples: at least weekly for a toilet used by up to 10 people, and twice weekly as a schedule that would likely keep one toilet used by 20 employees sanitary.

The 2006 letter is the primary source behind many published servicing claims, and its regulatory conclusion must be separated from its consensus-standard examples. It holds, unambiguously, that a toilet in unsanitary condition does not count toward the Table D-1 minimum. An employer with 20 workers and one unsanitary unit has not provided the required usable facility. That conclusion follows OSHA’s interpretation of the word “provided.”

The ANSI figures are guidance examples rather than a servicing interval written into §1926.51. OSHA introduced them with: “One way for an employer to meet its obligation regarding sanitary conditions under this standard is to use the servicing schedule in the ANSI Z4.3-1995, Section 3 … industry consensus standard as a guide.” The letter then works the arithmetic: ANSI calls for weekly service for a toilet used by up to 10 people; where one toilet serves 20 employees, OSHA states that twice-weekly service would likely provide a sanitary facility.

The practical consequence is the opposite of the blanket statement “OSHA says weekly is compliant.” The weekly example is the up-to-10-user case, not a universal safe harbor. The controlling question remains whether the unit is clean, sanitary, serviceable, supplied, and genuinely available under the standard that applies.

Sources: OSHA 29 CFR 1926.51 and 1915.88; OSHA letter of interpretation dated May 17, 2006; WAC 296-155-140. Verified July 27, 2026. ANSI figures are reported as quoted in OSHA’s letter; the ANSI standard itself is a copyrighted consensus document and is not reproduced here.

Does OSHA Require Handwashing Stations on Construction Sites?

Under ordinary federal construction §1926.51, handwashing is not a universal requirement attached to every portable toilet. Section 1926.51(f)(1) applies where employees handle paints, coatings, herbicides, insecticides, or other harmful contaminants, while OSHA has stated that the separate running-water lavatory provision in §1926.51(f)(3) applies only to permanent places of employment. California, Washington, agriculture, shipyards, maritime work, and HAZWOPER use broader or different rules.

The point comes from footnote 1 of OSHA’s July 20, 2005 interpretation. OSHA explains that §1926.51(f)(3) is limited to permanent places of employment and that construction sites typically are not permanent workplaces for construction employees.

The ordinary federal construction answer therefore has two parts. Where the contaminant trigger is met, adequate washing facilities must be near the work and capable of removing the substance. Where it is not met, §1926.51 does not impose a general handwashing-station requirement on a temporary construction site.

When the trigger ismet, waterless cleaner is typically not enough. OSHA’s 2005 interpretation says waterless cleaner with towels or rags ordinarily would not remove harmful contaminants adequately and relies on the field-sanitation rulemaking record supporting soap and potable water. A June 12, 2006 interpretation addresses which materials encountered in electrical construction can trigger §1926.51(f)(1).

Sources: OSHA standards as cited; OSHA letter of interpretation dated July 20, 2005 including footnote 1; California Code of Regulations Title 8 §1527, dir.ca.gov; WAC 296-155-140, app.leg.wa.gov. Verified July 27, 2026.

Do Porta Potties Have to Be ADA Accessible, Lock, or Be Separated by Sex?

Portable toilet units provided exclusively for construction personnel at a construction site are exempt from the 2010 ADA Standards’ §213 toilet-facility scoping and accessible-route requirements under §203.2. The separate 5% rule applies to clustered single-user portable units generally, not to units covered by the construction-personnel exception. Employment accommodation duties are a separate question.

The 5% figure is real and it is the source of the confusion. It comes from §213.2, Exception 3, which provides that where multiple single-user portable toilet or bathing units are clustered at a single location, no more than 5 percent of the units at each cluster are required to comply with §603. That provision governs clustered portable units generally — at public events, for instance. It does not override the construction-personnel exemption at §203.2. A page that quotes the 5% rule for an employee-only construction site has quoted the right standard for the wrong facility.

Separate obligations can still attach. Title I’s employment provisions and the reasonable-accommodation duty operate independently of the design standards; the EEOC states that covered employers with 15 or more employees may have to provide reasonable accommodation to a qualified employee with a disability. That is a fact-specific employment-law question, not a design-scoping question, and it is outside what this reference table can answer.

Locks and sex separation follow the same pattern as everything else here: they depend on the standard.

Sources: OSHA standards as cited; 2010 ADA Standards for Accessible Design §§203.2 and 213.2, U.S. Access Board; U.S. Equal Employment Opportunity Commission reasonable-accommodation guidance; 8 CCR §1526; and WAC 296-155-140. Verified July 27, 2026.

Where Do State Rules Go Further Than Federal OSHA?

OSHA currently recognizes 22 State Plans covering private-sector and state/local-government workers, and a State Plan may use requirements that differ from or exceed the federal floor. This page directly verifies three state examples against their issuing agencies’ text: California, Washington, and Oregon. The three reviewed states use materially different approaches; Washington adds numerical access, placement, inspection, and worker-accommodation provisions not present in federal §1926.51.

Washington replaces federal Table D-1 with its own toilet-count table, defines a nearby facility numerically, sets a wash-water temperature, imposes placement distances, requires start-of-shift inspections, assigns a multiemployer duty, and — since July 1, 2025 — requires no-cost menstrual hygiene products and lactation accommodations for construction workers.

Sources: OSHA 29 CFR 1926.51; California Code of Regulations Title 8 §§1526–1527; Washington Administrative Code 296-155-140; and WSR 25-11-072, filed May 20, 2025 and effective July 1, 2025 under RCW 49.17.530. Verified July 27, 2026.

Two further details are worth carrying. Washington prohibits holding-tank-only “elevator units” unless an individual unit is located in a lockable private room, and it requires waste containers sized so they are not more than half full before regularly scheduled servicing. California Health and Safety Code §118600, enacted by AB 1732, takes precedence over Title 8’s sex-designation language for single-user facilities with flush toilets: Cal/OSHA still enforces the required combined and per-sex counts, but it does not enforce single-gender designation for a single-user flush-toilet facility. Multiple-user facilities and nonflush facilities — including chemical toilets — remain outside §118600 and must still be provided separately for males and females under the cited Title 8 rules.

Oregon adopts federal §1926.51 and adds OAR 437-003-0020. Oregon OSHA Program Directive A-97 ordinarily interprets reasonable accessibility at permanent worksites as no farther than an unhurried three-minute walk over an unobstructed path; it allows up to five minutes when its stated conditions exist. For temporary worksites, the directive ordinarily places employer-provided chemical toilets or privies within the same three-minute travel distance and describes specific alternatives, including certain arrangements with neighboring establishments.

Which OSHA Authority Covers Each State?

OSHA currently recognizes 22 State Plans covering most private-sector workers and all state and local government workers, and seven plans covering only state and local government workers. Expressed geographically, that is 21 full-plan states plus Puerto Rico and six public-sector-only states plus the U.S. Virgin Islands. Private-sector employers in the remaining 23 states and the District of Columbia are generally under direct federal OSHA jurisdiction.

Source: OSHA State Plans directory and OSHA State Plans FAQ. Verified July 27, 2026. This table classifies the principal OSHA authority; federal OSHA retains coverage for some workers or activities excluded from particular State Plans. It does not represent that every full-plan jurisdiction’s sanitation code was reviewed.

OSHA’s headline count is 29 approved plans: 22 full plans and seven public-sector-only plans. The 22 full plans comprise 21 states plus Puerto Rico; the seven public-sector-only plans comprise six states plus the U.S. Virgin Islands. The downloadable jurisdiction file contains one row for each of the 50 states, the District of Columbia, Puerto Rico, and the U.S. Virgin Islands.

Which Rules Apply in Alabama, Huntsville, and Madison County?

Alabama has no OSHA-approved State Plan, so federal OSHA covers most private-sector workers in the state. For ordinary private-sector construction covered by federal OSHA, 29 CFR 1926.51 is the baseline sanitation standard unless a more specific federal standard applies. Alabama state and local government workers are not covered by federal OSHA.

That jurisdictional distinction does not establish that Alabama public employers have no sanitation duties. Any duties for a state, county, or municipal crew would arise from another applicable authority — such as state law, agency policy, or contract terms — not from federal OSHA coverage measured by this dataset.

Huntsville is the seat of Madison County and, according to the City of Huntsville, extends west into Limestone County. Crossing that county line does not change the federal OSHA jurisdiction described above. This page does not infer a county-level employee ratio where the cited OSHA and local sources do not publish one.

Local rules that do exist address waste acceptance rather than employee counts. Huntsville Water Pollution Control lists portable-toilet waste among approved hauled-waste types from Huntsville’s sanitary sewer service area or Madison County, requires preapproval for discharge privileges, and requires current licenses, permits, and vehicle information from hauled-waste transporters. Those requirements govern acceptance and discharge of waste; they do not set the number of toilets required at a worksite.

Sources: OSHA State Plans directory; City of Huntsville, “Facts & Figures”; City of Huntsville Water Pollution Control, “Hauled Waste.” Verified July 27, 2026.

What Has OSHA Said in Interpretation Letters Since 1993?

OSHA’s regulatory text supplies the binding requirements, while interpretation letters explain how the agency applies those requirements to particular facts and cannot create additional employer obligations. The 13 entries below are the OSHA interpretations and memoranda used in this page’s access, servicing, washing, portable-substitution, mobile-crew, and railroad analyses. Each was read against OSHA’s published text on July 27, 2026.

Source: OSHA interpretation letters and memoranda linked in the primary-source list. Verified July 27, 2026.

What Are the Federal OSHA Penalties in 2026?

For violations assessed after January 15, 2026, federal OSHA lists maximums of $16,550 per serious, other-than-serious, or posting violation; $16,550 per day for failure to abate; and $165,514per willful or repeated violation. These are federal maximums across OSHA standards, not automatic sanitation penalties. Actual proposed amounts depend on the violation classification and OSHA’s penalty policies.

OSHA made no inflation-based increase for 2026. Its May 21, 2026 memorandum states that the required October 2025 Consumer Price Index for All Urban Consumers figure was unavailable because of the government shutdown, the statute supplied no alternative calculation method, and the 2025 maximums therefore remained in effect for 2026.

Source: OSHA, “OSHA Penalties,” and OSHA memorandum, “2026 OSHA Civil Penalties Update: No Inflation Adjustment and Updated Minimum Penalties,” May 21, 2026. Verified July 27, 2026.

State Plans use their own penalty policies and procedures, which OSHA must deem at least as effective. OSHA states that State Plans are not required to impose monetary penalties on state and local government employers.

Which Common Claims Match the Primary Sources?

The claims below recur in workplace-sanitation summaries and are easy to repeat without preserving their scope. Each was checked against the controlling regulation, interpretation, State Plan rule, or ADA design standard. “Not found” means not found in the primary sources reviewed for this dataset; another contract, project owner, State Plan, or local rule can impose a separate condition.

Sources: the primary authority named in each row; full URLs appear in the source list. Verified July 27, 2026.

What Hazards Are Associated With Portable Sanitation?

Sewage-related environments can contain hydrogen sulfide. OSHA describes hydrogen sulfide as highly toxic, heavier than air, capable of collecting in low-lying or enclosed poorly ventilated areas, and unsafe to detect by smell because olfactory fatigue or paralysis can remove the warning. A holding tank, receiving structure, or other space is governed by 29 CFR 1910.146 or 29 CFR 1926 Subpart AA only when the work falls within that standard’s scope and the space meets the applicable confined-space or permit-space definitions.

Nothing on this page is an entry, pumping, servicing, or disposal procedure. Work involving waste tanks, hazardous atmospheres, confined-space entry, transport, or discharge belongs to personnel trained, equipped, and authorized for the applicable task and jurisdiction. Waste transport and discharge are separately controlled by the relevant environmental and wastewater authorities.

Sources: OSHA, “Hydrogen Sulfide — Overview” and “Evaluating and Controlling Exposure”; 29 CFR 1910.146; 29 CFR 1926 Subpart AA. Verified July 27, 2026.

How Was This Dataset Built?

This page is a reproducible primary-source comparison, not a survey or modeled estimate. Dataset version 1.0.0contains 72 normalized federal-standard records, 53 jurisdiction records, six threshold-audit records, 13 claim-audit records, a 48-field data dictionary, and a combined JSON distribution; every published requirement was checked against the issuing body’s text on July 27, 2026.

What we collected.The regulatory text for the eight federal standards compared in Table 1; the 13 OSHA interpretation letters and memoranda listed in Table 10; OSHA’s State Plans directory and FAQ; OSHA’s current penalty page and May 21, 2026 penalty memorandum; the 2010 ADA Standards §§203.2 and 213.2 with U.S. Access Board guidance; EEOC reasonable-accommodation guidance; California Title 8 §§1526–1527 and Cal/OSHA’s toilet-facilities FAQ; Washington WAC 296-155-140 and its 2025 adoption record; Oregon’s construction sanitation rule and Program Directive A-97; and the City of Huntsville sources used for the local applicability record.

Where we collected it.From the issuing body in every case. OSHA standards and interpretations came from osha.gov and were cross-checked against eCFR where a corresponding eCFR page was available. California material came from the Department of Industrial Relations. Washington material came from the Legislature, State Register, and Department of Labor & Industries. Oregon material came from Oregon OSHA. ADA scoping came from the U.S. Access Board. Employment-accommodation guidance came from the EEOC. Huntsville geography and hauled-waste requirements came from the City of Huntsville. No secondary source supplied a requirement or figure published in the data tables.

When. All primary sources listed below were opened and checked on July 27, 2026. The visible verification date, the dataset files, and the revision record all use that same date.

How it was processed. We normalized the eight federal standards into nine requirement types: employee scope, minimum facilities, portable-unit status, access, servicing, washing, privacy or locks, sex separation, and exceptions. Each requirement became one row in the federal crosswalk. Source wording was preserved where the exact wording controls the result, including employee denominators and threshold bands. Where a printed table overlaps or omits a value, the dataset records the defect rather than converting it into a clean range. Regulations, interpretation letters, State Plan provisions, ADA design scoping, employment accommodation, and voluntary consensus guidance remain separate categories.

Verification tiers.★ means the cited provision was read directly against the issuing body’s published text and approved for publication. ● means a primary-source record has been located but still requires another direct verification pass. Every requirement, figure, table row, and downloadable record in version 1.0.0is ★; no ● record is presented as a published finding.

What we deliberately excluded.OSHA enforcement citation, inspection, and assessed-penalty totals for these sanitation standards are not published. OSHA provides an Industry Profile for an OSHA Standard tool, but no count belongs in this page unless the exact query, date range, output, and denominator are directly retrieved and preserved. The page reports only the current statutory penalty ceilings verified on OSHA’s penalty page and in its 2026 memorandum.

What Are the Limitations of This Dataset?

This is an educational research compilation, not individualized legal advice. It answers what the cited sources say and how their text differs; it cannot classify a particular employer, project, crew, facility, or enforcement case.

• The eight-standard crosswalk is a defined comparison set, not a claim that OSHA has only eight sanitation-related provisions. Other substance-specific, industry-specific, public-health, environmental, building, contract, and project-owner rules may apply.
• Which OSHA standard governs depends on the industry, the nature of the work, whether the workplace is permanent or temporary, the employees present, and the jurisdiction. More than one standard can affect a site.
• The jurisdiction table identifies the principal OSHA authority. It is not a 50-state substantive sanitation-code audit. California, Washington, and Oregon were reviewed directly for the state-rule comparison; the other 18 full-plan states and Puerto Rico were not audited provision by provision.
• OSHA interpretation letters apply standards to the facts described and cannot create additional employer obligations. Later rules, judicial decisions, or agency guidance can affect an interpretation.
• Table D-1’s printed bands overlap at exactly 20 and 200 employees. The two HAZWOPER tables reviewed do not assign exactly 200 employees to a printed row. This dataset preserves those defects and does not supply a missing legal answer.
• ANSI/PSAI Z4.3 is a copyrighted voluntary consensus standard. This page reports only the servicing examples OSHA quoted in its May 17, 2006 interpretation and does not reproduce the ANSI table.
• Federal OSHA sets no single construction servicing interval. The condition, use rate, supplies, access, and any applicable State Plan or industry-specific rule still control.
• The ADA construction-personnel exception concerns design-standard scoping. It does not eliminate a covered employer’s separate duty to provide a reasonable accommodation when the ADA’s employment provisions apply.
• Federal penalty figures are statutory maximums, not automatic sanitation fines or typical assessed amounts. OSHA’s penalty policies can reduce proposed penalties based on the applicable factors.
• Enforcement citation, inspection, and assessed-penalty totals are excluded because they were not directly retrieved and preserved for this version.
• Alabama state and local government workers are outside federal OSHA coverage. This page does not attempt to catalogue every state statute, agency policy, collective-bargaining term, or public contract that may govern those workers.
• Local building, health, wastewater, sewer-use, hauling, and disposal rules can add obligations without changing the federal OSHA employee-count table. Huntsville’s hauled-waste rules are one example.
• This page addresses employee sanitation at workplaces. It does not cover attendee ratios for festivals, weddings, public events, campgrounds, or other nonemployee populations. See the Porta Potty Calculator for event planning data.
• The CSV and JSON files are a versioned snapshot of the sources as verified on July 27, 2026. A later source change does not silently alter version 1.0.0.
• The visible “Last verified” date changes only after the cited sources are reopened, the affected records are checked, the files are regenerated, and the revision history is updated.

What Files Are Included in the Dataset?

Version 1.0.0 publishes six directly downloadable data distributions plus a checksum manifest. The files contain the normalized records behind the federal crosswalk, the 53-jurisdiction authority table, the threshold audit, the common-claim audit, the field definitions, and the combined JSON package; no account, form, or script-generated redirect is required.

Source: Porta Potty Rental Huntsville AL Research dataset build, version 1.0.0. Files generated and checksums calculated July 27, 2026.

Federal crosswalk fields

record_id, dataset_version, jurisdiction_level, jurisdiction_name, workplace_category, standard_number, requirement_type, requirement_text, employee_scope_text, minimum_facility_text, portable_facility_status, access_rule, service_rule, washing_rule, privacy_lock_rule, sex_separation_rule, exception_text, source_agency, source_title, source_url, source_document_date, verification_date, verification_tier, source_text_note

Jurisdiction fields

jurisdiction, private_sector_authority, public_employee_authority, plan_category, verification_date, verification_tier, source_url

Threshold-audit fields

standard_number, table_name, printed_bands, overlap_finding, unassigned_values, denominator_basis, fraction_language_present, verification_date, verification_tier, source_url

Claim-audit fields

claim_text, classification, finding, controlling_source, source_url, verification_date, verification_tier

Frequently Asked Questions

The answers below state the source-controlled rule first and preserve the distinction between federal regulations, interpretation guidance, State Plan provisions, ADA design scoping, and penalty ceilings. Each answer is visible page content and is reproduced in the FAQPage structured data.

Does OSHA require porta potties on construction sites?

OSHA requires toilet facilities; a portable unit is one way to satisfy that duty. At construction jobsites without a sanitary sewer, 29 CFR 1926.51(c)(3) lists qualifying privies, chemical toilets, recirculating toilets, and combustion toilets unless local codes prohibit them, while a permanent restroom can also qualify when employees have prompt access.

How many porta potties does OSHA require for 20 workers?

Table D-1’s first row states one facility for 20 or fewer employees. The printed table also begins its next row at “20 or more,” so exactly 20 appears in both rows; this dataset preserves that overlap instead of inventing a resolution. Washington’s separate rule requires two toilets for 11–25 employees, while California requires one facility per 20 employees or fraction of each sex.

Is the OSHA rule one porta potty per 20 workers?

No continuing federal construction ratio is printed that way. “20 or less — 1” is Table D-1’s first row; the higher rows use one toilet seat and one urinal per 40 workers and, at 200 or more, one toilet seat and one urinal per 50 workers.

How close does a porta potty have to be under OSHA?

Federal construction §1926.51 prints no distance or travel time, but OSHA interprets “provided” to require prompt access. OSHA first used less than 10 minutes as a general example for mobile crews in 2002 and stated in 2005 that the same general starting point applies when assessing fixed construction sites.

Is there a federal OSHA 200-foot porta potty rule?

No universal 200-foot limit appears in 29 CFR 1926.51 or the OSHA construction interpretations reviewed for this dataset. Washington’s construction rule requires the covered facilities within 200 feet horizontally of employees and on every third floor, subject to its mobile-crew and unattended-location exception.

How often must a construction porta potty be serviced?

Federal OSHA sets no fixed construction servicing interval; the unit must remain sanitary and usable. OSHA’s May 17, 2006 interpretation cites ANSI-based examples of at least weekly service for a unit used by up to 10 people and twice-weekly service for a unit used by 20 people as one way to guide compliance, not as a universal federal schedule.

Does a dirty porta potty count toward the OSHA minimum?

No. OSHA stated on May 17, 2006 that an unsanitary toilet is unusable, has not been “provided” under §1926.51(c)(1), and cannot be counted toward the Table D-1 minimum.

Does every construction site need a handwashing station?

Not under ordinary federal construction §1926.51. Paragraph (f)(1) is triggered by specified operations involving harmful contaminants, and OSHA states that the running-water lavatory provision at (f)(3) applies only to permanent places of employment; California and Washington impose broader construction washing requirements subject to their stated exceptions.

Is hand sanitizer enough under OSHA?

There is no universal answer across the compared standards. When the harmful-contaminant trigger in §1926.51(f)(1) applies, OSHA states that waterless cleaner and towels or rags typically are not sufficient to remove the contaminants; shipyard rules separately allow qualifying waterless agents only when they can disinfect or neutralize the relevant contaminants.

Do porta potties have to be ADA accessible on a construction site?

Portable toilet units used exclusively by construction personnel are exempt under 2010 ADA Standards §203.2 from §213 toilet-facility scoping and accessible-route requirements. The separate 5% provision applies to clustered portable units generally, and a covered employer can still have an independent employment-accommodation duty to an employee with a disability.

Must a construction porta potty lock from inside?

Ordinary federal construction §1926.51(c) contains no inside-lock requirement. Inside-controlled locks or latches are expressly required in other settings, including HAZWOPER, agricultural field sanitation, maritime standards, and Washington construction, while general industry and shipyards use an inside-lock condition for their single-occupancy mixed-sex exception.

What counts as a mobile crew under OSHA?

OSHA describes a mobile crew as workers whose functions require continual or frequent movement from jobsite to jobsite on a daily or hourly basis. Workers who report to a conventional project for days, weeks, or longer do not become a mobile crew merely because they move around within that project.

Do OSHA porta potty requirements differ by state?

They can. State Plans must be at least as effective as federal OSHA and may adopt different or more protective rules; this page directly verifies construction-sanitation differences in California, Washington, and Oregon and does not claim that every other State Plan code has been audited.

Which OSHA porta potty requirements apply in Alabama?

Federal OSHA covers most private-sector construction in Alabama because the state has no OSHA-approved State Plan. Alabama state and local government workers are not covered by federal OSHA, so their obligations must be identified from the separate law, agency policy, contract, or other authority that applies to the public employer.

What is the maximum OSHA penalty for a sanitation violation in 2026?

For violations assessed after January 15, 2026, the federal maximum is $16,550 per serious, other-than-serious, or posting violation and $165,514 per willful or repeated violation. Those are statutory ceilings across OSHA standards, not automatic sanitation penalties or typical assessed amounts.

Which Primary Sources Support This Page?

The source list contains the regulations, agency interpretations, State Plan materials, accessibility guidance, local records, and safety standards used in the page and dataset. Every source below was opened and checked on July 27, 2026; the issuing body is the source of record for every published requirement.

1. OSHA, 29 CFR 1926.51, “Sanitation” (construction) https://www.osha.gov/laws-regs/regulations/standardnumber/1926/1926.51
2. OSHA, 29 CFR 1910.141, “Sanitation” (general industry) https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.141
3. OSHA, 29 CFR 1928.110, “Field Sanitation” https://www.osha.gov/laws-regs/regulations/standardnumber/1928/1928.110
4. OSHA, 29 CFR 1915.88, “Sanitation” (shipyard employment) https://www.osha.gov/laws-regs/regulations/standardnumber/1915/1915.88
5. OSHA, 29 CFR 1910.120, “Hazardous Waste Operations and Emergency Response” https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.120
6. OSHA, 29 CFR 1926.65, “Hazardous Waste Operations and Emergency Response” https://www.osha.gov/laws-regs/regulations/standardnumber/1926/1926.65
7. OSHA, 29 CFR 1917.127, “Sanitation” (marine terminals) https://www.osha.gov/laws-regs/regulations/standardnumber/1917/1917.127
8. OSHA, 29 CFR 1918.95, “Sanitation” (longshoring) https://www.osha.gov/laws-regs/regulations/standardnumber/1918/1918.95
9. eCFR, 29 CFR 1926.51 https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XVII/part-1926/subpart-D/section-1926.51
10. eCFR, 29 CFR 1910.141 https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XVII/part-1910/subpart-J/section-1910.141
11. eCFR, 29 CFR 1928.110 https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XVII/part-1928/subpart-I/section-1928.110
12. eCFR, 29 CFR 1915.88 https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XVII/part-1915/subpart-F/section-1915.88
13. eCFR, 29 CFR 1910.120 https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XVII/part-1910/subpart-H/section-1910.120
14. eCFR, 29 CFR 1926.65 https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XVII/part-1926/subpart-D/section-1926.65
15. eCFR, 29 CFR 1917.127 https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XVII/part-1917/subpart-F/section-1917.127
16. eCFR, 29 CFR 1918.95 https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XVII/part-1918/subpart-I/section-1918.95
17. OSHA interpretation, April 19, 1993, “Toilets are not required at construction jobsites if transportation is readily available to nearby facilities” https://www.osha.gov/laws-regs/standardinterpretations/1993-04-19-1
18. OSHA memorandum, April 6, 1998, “Interpretation of 29 CFR 1910.141(c)(1)(i): Toilet Facilities” https://www.osha.gov/laws-regs/standardinterpretations/1998-04-06-0
19. OSHA interpretation, May 18, 1999, “Substituting portable toilets for water closets may be a de minimis violation” https://www.osha.gov/laws-regs/standardinterpretations/1999-05-18
20. OSHA interpretation, June 7, 2002, “Mobile crews must have prompt access to nearby toilet facilities” https://www.osha.gov/laws-regs/standardinterpretations/2002-06-07
21. OSHA interpretation, February 23, 2005, “Providing employees with toilet facilities on a construction jobsite” https://www.osha.gov/laws-regs/standardinterpretations/2005-02-23
22. OSHA interpretation, July 20, 2005, “The requirements for washing facilities on construction jobsites” https://www.osha.gov/laws-regs/standardinterpretations/2005-07-20
23. OSHA interpretation, May 17, 2006, “Whether toilets at a construction jobsite must be in a sanitary condition” https://www.osha.gov/laws-regs/standardinterpretations/2006-05-17-0
24. OSHA interpretation, June 12, 2006, “Operations that trigger the requirement for employers to provide washing facilities” https://www.osha.gov/laws-regs/standardinterpretations/2006-06-12
25. OSHA interpretation, March 1, 2007, “Clarification of decontamination procedures for employees involved in Class I asbestos work” https://www.osha.gov/laws-regs/standardinterpretations/2007-03-01
26. OSHA interpretation, April 11, 2008, “Whether a pH buffer solution can be used as a cleansing agent for employees who work with portland cement” https://www.osha.gov/laws-regs/standardinterpretations/2008-04-11
27. OSHA memorandum, October 18, 2010, “Region V request for enforcement guidance on portland cement and hexavalent chromium” https://www.osha.gov/laws-regs/standardinterpretations/2010-10-18
28. OSHA interpretation, March 11, 2011, “Clarification of mobile workers and sanitation facility requirements under HAZWOPER” https://www.osha.gov/laws-regs/standardinterpretations/2011-03-11
29. OSHA interpretation, May 14, 2024, “Sanitation facilities for railroad track employees and roadway maintenance groups” https://www.osha.gov/laws-regs/standardinterpretations/2024-05-14
30. OSHA, “Restrooms and Sanitation Requirements — Overview” https://www.osha.gov/restrooms-sanitation
31. OSHA, “State Plans” https://www.osha.gov/stateplans
32. OSHA, “State Plans — Frequently Asked Questions” https://www.osha.gov/stateplans/faqs
33. OSHA, “OSHA Penalties” https://www.osha.gov/penalties
34. OSHA memorandum, May 21, 2026, “2026 OSHA Civil Penalties Update: No Inflation Adjustment and Updated Minimum Penalties” https://www.osha.gov/memos/2026-05-21/2026-annual-adjustments-osha-civil-penalties
35. OSHA, Shipyard Employment eTool, “Sanitation” https://www.osha.gov/etools/shipyard/general-requirements/working-conditions/sanitation
36. California Department of Industrial Relations, 8 CCR §1526, “Toilets at Construction Jobsites” https://www.dir.ca.gov/title8/1526.html
37. California Department of Industrial Relations, 8 CCR §1527, “Washing Facilities, Food Handling, and Temporary Sleeping Quarters” https://www.dir.ca.gov/title8/1527.html
38. California Department of Industrial Relations, 8 CCR §3364, “Sanitary Facilities” https://www.dir.ca.gov/Title8/3364.html
39. Cal/OSHA, “Frequently Asked Question about Toilet Facilities” (AB 1732 / Health and Safety Code §118600) https://www.dir.ca.gov/dosh/toilet-facilities-FAQ.html
40. Washington State Legislature, WAC 296-155-140, “Sanitation” https://app.leg.wa.gov/wac/default.aspx?cite=296-155-140
41. Washington State Register, WSR 25-11-072, filed May 20, 2025, effective July 1, 2025 https://lawfilesext.leg.wa.gov/law/wsrpdf/2025/11/25-11-072.pdf
42. Washington State Department of Labor & Industries, “Sanitary Conditions for Construction Workers” https://www.lni.wa.gov/safety-health/safety-topics/industry-topics/sanitation-in-construction
43. Oregon OSHA, Program Directive A-97, “Toilet Facilities: Reasonable Accessibility” https://osha.oregon.gov/OSHARules/pd/pd-097.pdf
44. Oregon OSHA, Division 3, Subdivision D, “Occupational Health and Environmental Controls” https://osha.oregon.gov/OSHARules/div3/div3D.pdf
45. U.S. Access Board, 2010 ADA Standards, Chapter 2, §203.2 “Construction Sites” https://www.access-board.gov/ada/chapter/ch02/
46. U.S. Access Board, Guide to the ADA Standards, Chapter 6, “Toilet Rooms” https://www.access-board.gov/ada/guides/chapter-6-toilet-rooms/
47. U.S. Equal Employment Opportunity Commission, “Small Employers and Reasonable Accommodation” https://www.eeoc.gov/publications/small-employers-and-reasonable-accommodation
48. City of Huntsville, “Facts & Figures” https://www.huntsvilleal.gov/business/city-of-huntsville/facts-figures-about-huntsville/
49. City of Huntsville Water Pollution Control, “Hauled Waste” https://www.huntsvilleal.gov/environment/water/water-pollution-control-information/permits-fees/hauled-waste/
50. OSHA, “Hydrogen Sulfide — Overview” https://www.osha.gov/hydrogen-sulfide
51. OSHA, “Hydrogen Sulfide — Hazards” https://www.osha.gov/hydrogen-sulfide/hazards
52. OSHA, “Hydrogen Sulfide — Evaluating and Controlling Exposure” https://www.osha.gov/hydrogen-sulfide/evaluating-controlling-exposure
53. OSHA, 29 CFR 1910.146, “Permit-Required Confined Spaces” https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.146
54. OSHA, 29 CFR 1926 Subpart AA, “Confined Spaces in Construction” https://www.osha.gov/laws-regs/regulations/standardnumber/1926/1926SubpartAA
55. OSHA, “Industry Profile for an OSHA Standard” https://www.osha.gov/ords/imis/industryprofile.html