California’s portable toilet regulations aren’t a single rule but a set of overlapping requirements that shift depending on where the units go. Cal/OSHA sets worker-to-toilet ratios under Title 8, the California Building Code governs wheelchair accessibility, and the Water Code controls what happens to the waste. The ratio that applies to a construction crew is different from the one for a warehouse, which is different again from a farm field or a public festival. Getting the wrong rule can mean citations, environmental fines, or ADA complaints, so the first question is always which setting you’re in.
How Many Portable Toilets You Need
Construction Sites
Title 8, Section 1526 uses a flat ratio: one toilet for every 20 workers (or fraction of 20) of each sex.1Department of Industrial Relations. California Code of Regulations Title 8 Section 1526 – Toilets at Construction Jobsites A crew of 25 men and 5 women needs two toilets for the men and one for the women. Urinals can replace some units in men’s facilities, but toilets must still make up at least half the required total.
With fewer than five workers on site, one all-gender toilet is enough if it provides full privacy. All-gender single-user units can also count toward the total on larger crews, as long as every single-user unit is designated all-gender and any multi-user facilities are split equally between sexes. Every unit has to stay clean, functional, private, and stocked with toilet paper. Mobile crews with transportation to nearby facilities are exempt from the on-site requirement.
General Industry Workplaces
Non-construction workplaces fall under Section 3364, which uses a graduated table rather than a flat ratio:2Department of Industrial Relations. California Code of Regulations Title 8 Section 3364 – Sanitary Facilities
- 1 to 15 employees: 1 toilet
- 16 to 35 employees: 2 toilets
- 36 to 55 employees: 3 toilets
- 56 to 80 employees: 4 toilets
- 81 to 110 employees: 5 toilets
- 111 to 150 employees: 6 toilets
- Over 150 employees: one additional toilet for every 40 employees beyond 150
The under-five all-gender exception applies here too. Don’t confuse this table with the construction formula. A general-industry employer with 60 workers needs four toilets per sex under Section 3364. A construction employer with the same crew needs three per sex under Section 1526. Where practicable, toilets should sit within 200 feet of where workers are stationed and no more than one flight of stairs away.
Agricultural Fields
Section 3457 covers farmworkers. The ratio mirrors construction at one toilet per 20 workers of each sex, with the same all-gender exception for crews under five.3Department of Industrial Relations. California Code of Regulations Title 8 Section 3457 – Field Sanitation The distance rule is the strictest in California: facilities must sit within a quarter-mile walk or a five-minute walk, whichever is shorter. Where terrain makes that impossible, units go at the closest point with vehicle access. For hand-labor operations under two hours, or when fewer than five employees work a given day, the employer can transport workers to off-site facilities instead.
Handwashing Stations Are Required Too
Toilets without handwashing isn’t compliant. Section 1527 requires at least one washing station for every 20 construction workers, positioned so a worker can wash immediately after using the toilet.4Department of Industrial Relations. California Code of Regulations Title 8 Section 1527 – Washing Facilities, Food Handling, and Temporary Sleeping Quarters Each station needs running water, soap, and either single-use towels or a warm-air dryer. A jug or bucket doesn’t satisfy the “adequate supply of water” requirement, and hand sanitizer alone doesn’t meet the standard either. The regulation calls for water and soap.
Stations must be kept clean, and a written service log is the easiest way to prove compliance during an inspection. This is where employers most often slip up: they order the portable toilets and forget the handwash stations, which carry the same citation risk.
Accessibility for Public Events
California Building Code Title 24, Section 11B-213.2 requires that when multiple portable toilets are clustered at one location, at least 5 percent of the units, and never fewer than one, must be wheelchair accessible.5International Code Council. 2022 California Building Code Title 24 Part 2 – 11B-213.2 Toilet Rooms and Bathing Rooms Accessible units must display the International Symbol of Accessibility.
There’s an important boundary here. Under federal ADA standards, portable toilets on construction sites used exclusively by construction personnel are fully exempt from accessibility requirements.6U.S. Access Board. Guide to the ADA Accessibility Standards – Chapter 6 Toilet Rooms Events open to the public get no such exemption. Festivals, farmers markets, and any gathering the public attends must meet the 5 percent rule. The path to accessible units also needs to be stable, firm, and slip-resistant for the duration of the event or project.
Waste Disposal and Environmental Rules
What happens to the waste after servicing is regulated separately. Under California’s Porter-Cologne Water Quality Control Act, discharging sewage into any waters of the state without authorization can trigger civil penalties of up to $10,000 per day through administrative action, or up to $25,000 per day if the case goes to superior court.7California Legislative Information. California Water Code Section 13385 When a discharge exceeds 1,000 gallons and can’t be cleaned up, per-gallon penalties stack on top.
These fines apply across the chain: the servicing company, the site manager who hired it, and the property owner. Waste must move through licensed haulers to approved treatment facilities. Illegal dumping into storm drains, vacant land, or waterways violates both California’s Water Code and the federal Clean Water Act. Before hiring a servicer, verify they hold the local health permits for sewage transport. Regulators look at the entity that hired the hauler, not just the hauler.
Penalties for Non-Compliance
Cal/OSHA enforces California’s workplace toilet rules, and the penalty structure is aggressive. Serious violations, which include failing to provide the required number of toilets or handwashing stations, can bring fines up to $25,000 per violation. Willful or repeat violations reach roughly $163,000 per violation, with a minimum around $11,600.
Environmental penalties run on a separate track. Water Code violations can hit $25,000 per day through the courts, with additional per-gallon surcharges for large uncleaned discharges.7California Legislative Information. California Water Code Section 13385 Regional water boards weigh the gravity of the violation, any prior history, and the economic benefit the violator gained by cutting corners when setting the fine.