California’s portable toilet regulations set the minimum number of units an employer or event organizer must provide, how far away they can be, how they must be serviced, and when they must be wheelchair accessible. The rules live in several places at once: Cal/OSHA Title 8 for workplaces, Title 24 of the California Building Code for accessibility, and the Porter-Cologne Water Quality Control Act for waste disposal. The ratio that applies to you depends on whether the site is construction, general industry, farmwork, or a public event, and getting the wrong rule means either overspending on units or facing citations.
Construction Jobsite Ratios
Cal/OSHA Title 8, Section 1526 sets the formula at 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 substitute for some units in men’s facilities, but toilets must still make up at least half of the required total.
When fewer than five workers are on site, a single all-gender toilet is enough as long as it provides complete privacy.1Department of Industrial Relations. California Code of Regulations Title 8 Section 1526 – Toilets at Construction Jobsites All-gender single-user units can also count toward the overall total for larger crews, provided every single-user unit is designated all-gender and any multi-user facilities are split equally between sexes.
Every unit must be kept clean, maintained in working order, designed for privacy, and stocked with toilet paper. Under temporary field conditions with only a skeleton crew, at least one toilet must still be available. Mobile crews with transportation to nearby facilities are exempt from the on-site requirement.
General Industry Workplaces
Workplaces outside construction fall under Title 8, 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 The minimum number of toilets per sex scales with headcount:
- 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. A common mistake is confusing 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. Applying the wrong rule means either paying for units you don’t need or falling out of compliance.
Facilities must be accessible during the work shift and, where practicable, within 200 feet of where workers are regularly stationed and no more than one flight of stairs away.2Department of Industrial Relations. California Code of Regulations Title 8 Section 3364 – Sanitary Facilities
Agricultural Field Sanitation
Farmworkers fall under Section 3457, which mirrors the construction ratio at one toilet per 20 workers of each sex and uses 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 be within a quarter-mile walk or a five-minute walk, whichever is shorter. When terrain makes that physically impossible, facilities go at the closest point with vehicle access. For hand-labor operations lasting under two hours, or when fewer than five employees work hand-labor on a given day, the employer can transport workers to off-site facilities instead of placing units in the field.
Handwashing Stations Are a Separate Requirement
Toilets without handwashing is not 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 blower. A bucket or jug does not satisfy the water requirement.
Hand sanitizer alone does not meet California’s handwashing standard. The regulation requires water and soap, and sanitizer provides neither. Stations must be kept clean, and keeping a written service log is the easiest way to prove compliance during an inspection. Many employers remember the toilets but forget the handwash stations, which carry the same citation risk.
Accessible Units at Public Events
California Building Code Title 24, Section 11B-213.2 requires that when multiple portable toilets are clustered at a single location, at least 5 percent of those 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 be marked with the International Symbol of Accessibility, and the path to them must be stable, firm, and slip-resistant.
Federal ADA standards exempt construction-site portable toilets used exclusively by construction personnel.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 where the public will use the units all fall under the 5 percent rule.
Waste Disposal Rules
What happens to the waste after a toilet is serviced is a legal issue in its own right. Portable toilet waste must be transported by licensed haulers and disposed of at approved treatment facilities. Illegal dumping into storm drains, vacant land, or waterways violates both California’s Water Code and the federal Clean Water Act.
Under the Porter-Cologne Water Quality Control Act, discharging sewage into waters of the state without authorization can trigger civil penalties of up to $10,000 per day through an administrative action, or up to $25,000 per day in superior court.7California Legislative Information. California Water Code Section 13385 When a discharge exceeds 1,000 gallons and cannot be cleaned up, per-gallon penalties stack on top. These fines apply to the full chain of responsibility: the hauler, the site manager who hired them, and the property owner. Before hiring a servicing company, verify they hold the required local health permits for sewage transport.
Penalties for Non-Compliance
Cal/OSHA enforces California’s workplace toilet requirements independently from federal OSHA, and California’s structure is more aggressive. For serious violations, which includes failing to provide the required number of toilets or handwashing stations, Cal/OSHA can impose fines of up to $25,000 per violation. Willful or repeat violations carry penalties up to roughly $163,000, with a minimum of about $11,600.
Environmental penalties run on a separate track. Regional water boards weigh the gravity of the violation, any history of prior violations, and the economic benefit the violator gained by cutting corners when setting the fine amount.7California Legislative Information. California Water Code Section 13385 Because Cal/OSHA citations and water-quality citations can both arise from the same jobsite, an employer who ignores one set of rules often ends up answering to both.