
Cal/OSHA Portable Toilet Requirements for Construction Sites
How many toilets and wash stations does a California job site need? Title 8 §1526 and §1527 explained with worked examples, plus how they differ from federal OSHA 1926.51.
Read the guide →Practical, sourced answers for East Bay builders, planners and homeowners—Cal/OSHA rules, ADA requirements, wedding counts, heat and remodel tips. New guides publish on Tuesdays.

How many toilets and wash stations does a California job site need? Title 8 §1526 and §1527 explained with worked examples, plus how they differ from federal OSHA 1926.51.
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“Handicap,” “wheelchair-accessible” and “ADA-compliant” portable toilets aren’t always the same unit. Dimensions, the 5% cluster rule and how to choose for your event.
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Exact restroom counts for 50–300 guest weddings, when to choose deluxe flushable units vs. a restroom trailer, and what East Bay venues need for water and power.
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East Contra Costa summers regularly pass 100°F. Where to place a portable toilet, how often to service it and what to ask for when renting in the heat.
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Remodeling in Brentwood, Walnut Creek or San Ramon? Where a contractor porta potty can go, gate widths, HOA approval and what a 2–3 month rental costs.
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A real festival request broken down: how many toilets, accessible units and hand-wash stations a two-day event needs, where to put them and when to service.
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