Most contractors know they need toilets on site. What they often do not know is exactly how many, under what conditions, and what actually happens when an OSHA inspector shows up and starts counting. This guide covers the federal standard that applies in Texas — 29 CFR 1926.51 — in plain language, with the 2026 penalty schedule and what we see on the ground in DFW.
Texas is a federal OSHA state. There is no separate Texas OSHA plan, which means federal standards apply directly and federal inspectors enforce them. If you are running a job site in Dallas, Fort Worth, Frisco, or anywhere in the Metroplex, 29 CFR 1926.51 is the rule.
OSHA specifies toilet minimums by crew size under 29 CFR 1926.51(c). These are minimums — you need at least this many, and they need to be in sanitary working condition. The table below applies to construction sites where employees cannot leave to use off-site facilities:
| Crew Size | Minimum Toilet Facilities | Notes |
|---|---|---|
| 20 or fewer workers | 1 toilet facility | Can be a single portable unit |
| 21 – 199 workers | 1 toilet seat + 1 urinal per 40 workers | Separate facilities for each sex required |
| 200 or more workers | 1 toilet seat + 1 urinal per 50 workers | Separate facilities for each sex required |
A few things that catch contractors off guard: once you hit 20 workers, you need separate facilities for men and women. A single porta-potty that everyone shares no longer meets the standard. And the count is based on the total number of workers on site at any one time — if you have multiple subcontractors working simultaneously, their headcounts combine.
The 20-worker threshold is the one most commonly missed. A crew that starts at 12 people and grows to 22 mid-project crosses the line without anyone noticing — until there's an inspection.
OSHA does not require permanent restrooms. Portable toilets, restroom trailers, and chemical toilets all count — as long as they meet the sanitation standard in 1926.51(g) and (h). The key requirements:
Facilities must be maintained in a clean, sanitary condition and in good repair. If the unit is full, overflowing, or non-functional, it does not count toward your required minimum even if it is physically present on site. This is where contractors get written up — they have the right number of units but one is out of service or overdue for pumping.
Adequate handwashing facilities must be provided when flushing toilets with running water are not used. For most construction sites using portable units, this means a handwashing station — either a separate unit or a restroom trailer with an onboard tank. Sanitizing gel alone does not satisfy this requirement.
Toilets must be accessible to workers at all times during the workday. OSHA has consistently held that workers cannot be required to travel unreasonable distances or face unreasonable delays to use facilities. For large sites, this often means multiple deployment locations rather than a single unit at the gate.
Facilities must provide adequate shelter. Units that are unsafe in extreme heat or that cannot be used safely due to weather conditions are cited under the general sanitation standard. In Texas summers — where DFW routinely sees 100°F+ days — this is a real compliance concern that climate-controlled trailer units address directly.
The standard describes minimums, but inspectors use judgment. Here is what tends to trigger citations on DFW construction sites:
One thing worth understanding about how inspections work in Texas: OSHA inspectors can arrive without advance notice, typically in response to a complaint or as part of a programmed inspection at high-hazard sites. Construction sites — especially residential tract development and commercial ground-up builds — are among the most frequently inspected categories in the DFW area.
OSHA adjusts civil penalties annually for inflation. The numbers below reflect 2025–2026 levels. Sanitation violations typically come in as "serious" or "other-than-serious" depending on the inspectors's assessment of the hazard. Willful or repeat violations are a different category entirely and carry substantially higher fines.
For most sanitation citations, the initial penalty is lower than the maximum after accounting for size, history, and good faith — but a contested repeat violation on a site that was cited previously can land in the six-figure range. The bigger cost is usually indirect: project delays, subcontractor disputes, and the administrative time involved in responding to citations.
Starting in 2023 and continuing through 2026, OSHA has been expanding its National Emphasis Program on heat-related illness in outdoor and indoor work environments. Construction sites in Texas are squarely in scope. While the heat standard and the sanitation standard are separate, inspectors visiting a site for one reason will cite violations of the other if they observe them.
The connection to sanitation is practical: workers who avoid drinking water because there are no nearby toilet facilities are at increased risk of heat illness. OSHA takes the position that inadequate sanitation contributes to heat risk. Restroom trailers with air conditioning address both concerns — workers have a climate-controlled break space with running water and proper facilities within one unit.
A restroom trailer is not inherently better than a portable toilet from a regulatory standpoint — both can be compliant. But in practice, trailers make compliance easier to maintain and document for a few reasons.
First, they are harder to abuse. A single-station porta-potty is much more likely to be found overflowing or out of supplies because any single high-use period can knock it out of commission. A multi-station trailer with an onboard fresh water tank, flush toilets, and running water at the sink handles far more traffic before service is required.
Second, trailers are self-contained on the water side. They do not require hookup to a water line, which matters on sites where plumbing is not yet installed. The onboard tank holds enough water for days of normal use, and we pump and restock on a scheduled basis that we document for your records.
Third — and this comes up on sites with female workers — a trailer is simply more likely to be used. If your female crew members avoid the porta-potty because of the condition or the privacy issues with a single shared unit, and an inspector asks them about it, that conversation does not go well for the GC. A properly maintained trailer addresses that before it becomes an issue.
We maintain service logs for every unit we place. If you ever need documentation during an inspection — dates serviced, condition on each visit, restocking history — we can provide it. That paper trail has value.
Before your next OSHA inspection — planned or otherwise — run through these:
Do this at project startup and every time crew size changes significantly. Use the table above to confirm you have the right number. If subcontractors are on site, their workers count too.
One unit does not satisfy the requirement if you have 20 or more workers, regardless of how clean it is. You need designated separate access for men and women.
Make sure there is a functioning handwashing station — soap, water, paper towels — within a reasonable distance of toilet facilities. Sanitizer gel alone does not substitute.
Keep records of when units were pumped, restocked, and inspected. Get this from your provider. If you use us, we provide it automatically.
Physically check that units are accessible, stocked, and functional. A unit that has been tipped over, blocked by equipment, or is out of supplies counts as zero for compliance purposes.
The OSHA standard for construction sanitation has not changed dramatically in recent years, but enforcement posture has. Inspectors are more likely to show up, inspection programs are better funded, and the penalty schedule has been ratcheting up with inflation for several years. The practical implication for DFW contractors: the math on compliant sanitation has shifted. Getting cited once costs more than doing it right the first time.
We place units on job sites across Tarrant, Dallas, Collin, and Denton counties every week. If you want to talk through what a compliant setup looks like for your current project — crew size, duration, site layout — call us and we will give you a straight answer in five minutes.
Note: This guide reflects our understanding of federal OSHA standards as of 2026. Regulations are subject to change and this is not legal advice. For formal compliance guidance, consult OSHA directly at osha.gov or a qualified safety consultant.
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