Revised On: Nov. 28, 2023 - 7:30 p.m.

Arizona’s statewide inspection program for onsite wastewater (septic) treatment facilities inspection are triggered by the resale of a home by an owner or with the assistance of a real estate professional. The inspection requirement applies to any property served by a conventional septic tank system or an alternative onsite system.

Inspection Program

Under this program:

• The seller of a property served by a conventional septic tank or alternative system shall retain a qualified inspector to perform the transfer of ownership inspection within six months before the date of property transfer.
• The inspector shall prepare a Report of Inspection (ROI) form, and provide it to the seller of the property. The ROI is not filed with ADEQ, as it involves communication on the status of the onsite wastewater system between the transferor/seller and the transferee/buyer.
• The seller shall provide the buyer with the completed ROI form and any documents in the seller’s possession relating to permitting, operation, and maintenance of the onsite system.
• Within 15 calendar days after the date of property transfer, the buyer shall submit a completed Notice of Transfer (NOT) form for the change of ownership and file the NOT with the proper agency.
  • For properties located in Cochise, Coconino, Maricopa, Mohave, Pima and Yavapai counties view the NOT form for instructions on how to submit the NOT | View Form > 
  • For properties located in all other counties, NOT should be submitted online | View Form >