In alignment with CDC guidance, Maricopa County is instituting a masking policy for all county employees and visitors at all Maricopa County buildings regardless of vaccination status. Masks must be worn in all county facilities. Anyone without a mask will be denied entry.
NOTICE: As of November 22, 2021 the Maricopa County Air Quality Department currently located at 3800 N. Central Ave., Phoenix, AZ 85012 will be relocating to 301 W Jefferson St, Suite 410, Phoenix, AZ 85003. Public Parking Information >>
The MCAQD One Stop Shop office located at 501 N. 44th Street was permanently closed as of March 25, 2021.