PSAI is proud to announce the successful completion and ANSI approval of two major standard revisions: ANSI/PSAI Z4.3-2025: Nonsewered Waste Disposal Systems at Places of Employment: Minimum Standards; and ANSI Z4.4-2025: Nonsewered Waste Disposal Systems for Public Use.
As an Accredited Standards Developer through the American National Standards Institute , PSAI leads the charge in establishing rigorous, up-to-date standards for best practices that safeguard health, dignity and environmental responsibility across the portable sanitation industry.These two revised standards represent clearly differentiated guidance for employment-based and public-use scenarios. Both updates respond to industry growth, rising public expectations, and heightened awareness around hygiene and
