NORTHERN SIERRA AIR QUALITY MANAGEMENT DISTRICT
RULE 504 - ACTION ON APPLICATIONS
(Adopted: September 11, 1991; Amended: May 11, 1994)
The Air Pollution Control Officer shall act within 180 days after the filing date on a Permit to Operate application
and shall notify the applicant in writing of his approval, conditional approval or denial.
For major sources subject to Title V of the Clean Air Act of 1990, Part 5.0 of Rule 522 Title V - Federal Operating
Permits applies to District action on applications.