Rev. Proc. 2023-22, page 838.

This Revenue Procedure provides issuers of qualified mortgage bonds, as defined in section 143(a) of the Internal Revenue Code, and issuers of mortgage credit certificates, as defined in section 25(c), with (1) nationwide average purchase prices for residences located in the United States, and (2) average area purchase price safe harbors for residences located in statistical areas in each state, the District of Columbia, Puerto Rico, the Northern Mariana Islands, American Samoa, the Virgin Islands, and Guam.