2021 International Plumbing Code – IPC-2021

The 2021 International Plumbing Code® (IPC) establishes minimum standards for the design, installation, and inspection of plumbing systems in all building types—except one- and two-family dwellings and townhouses up to three stories, which are covered under the IRC. This code supports both prescriptive and performance-based approaches and promotes innovation in materials and design.

Highlights:

• Permits multiple-user all-gender toilet facilities
• Adds two approved methods for sewer relining and rehabilitation
• Allows rooftop solar panels to be installed over vent terminals
• Recognizes CSA B805/ICC 805 for rainwater harvesting system design
• Integrates accessibility provisions from ICC A117.1-2017
• Covers potable and nonpotable water, sanitary and storm drainage, venting, water heaters, and graywater systems
• Structured into prescriptive chapters with appendices and accessibility references
• Fully aligned with the 2021 I-Codes for unified plumbing regulation and enforcement

Who It’s For:
Plumbing engineers, contractors, inspectors, and code officials working on compliant, modern plumbing systems in commercial and multifamily buildings.

IPC-2021