48 CFR § 42.103 - Contract audit services directory.
(a) DCAA maintains and distributes the Directory of Federal Contract Audit Offices. The directory identifies cognizant audit offices and the contractors over which they have cognizance. Changes to audit cognizance shall be provided to DCAA so that the directory can be updated.
(b) Agencies may obtain a copy of the directory or information concerning cognizant audit offices by contacting the - Defense Contract Audit Agency, ATTN: CMO, Publications Officer, 8725 John J. Kingman Road, Suite 2135, Fort Belvoir, VA 22060-6219.