Under OSHA's construction sanitation standard (29 CFR 1926.51), a jobsite with 20 or fewer workers needs at least 1 toilet. Sites with more than 20 workers need 1 toilet seat and 1 urinal per 40 workers, and sites with 200 or more workers need 1 toilet seat and 1...
How Many Porta Potties Do You Need on a Construction Site? (OSHA Ratio Explained)
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