2021 International Private Sewage Disposal Code – IPSDC-2021

The 2021 International Private Sewage Disposal Code® (IPSDC) establishes standards for the design, installation, and maintenance of on-site sewage systems for properties not connected to public sewer systems. It covers new systems and alterations to existing wastewater treatment infrastructure, ensuring health and environmental safety in decentralized applications.

Highlights:

• Offers a prescriptive design approach based on soil conditions, system size, and site evaluation
• Covers soil absorption systems, holding tanks, cesspools, and residential/light commercial treatment units
• Requires structured site evaluations based on percolation rates and environmental conditions
• Specifies construction and material standards for piping, tanks, system layout, and backfill
• Includes enforcement and administrative guidance for permitting, inspections, and jurisdictional customization
• Fully coordinated with the 2021 I-Codes, including IPC, IRC, and IEBC

Who It’s For:
Environmental health professionals, contractors, designers, and code officials regulating private sewage systems in non-sewered areas.

IPSDC-2021