Exemptions must be filed by a Professional Engineer (PE), Registered Architect (RA), or Licensed Master Plumber (LMP) on behalf of the property owner.
The PE, RA, or LMP must provide all required information in a typed letter on letterhead. The letter must state that all necessary exemption conditions have been met. It must be sent to the Department of Environmental Protection (DEP) for approval. An exemption guide is available online.
Learn more about cross connection control and water backflow prevention.