Adoption Info of Delaware Plumbing Code 2021
Official title 2021 Delaware Plumbing Code
Effective dates January 1, 2021 – Present
Published by Delaware Division of Public Health
Overview The 2021 Delaware Plumbing Code provides comprehensive regulations and guidelines for the design, installation, maintenance, and inspection of plumbing systems in residential, commercial, and industrial buildings throughout the state. This code covers all aspects of plumbing, including water supply, drainage, venting, sanitary facilities, and stormwater management. It ensures that plumbing systems are safe, reliable, and efficient, and that they comply with public health and safety standards.
The 2021 edition aligns with the International Plumbing Code (IPC) and includes Delaware-specific amendments to address the state’s unique environmental and regulatory requirements. These amendments may include additional provisions for water conservation, backflow prevention, and other public health concerns relevant to Delaware’s specific needs.

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Washington, DC