[Code of Federal Regulations] [Title 40, Volume 5] [Revised as of July 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR58.27] [Page 214] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 58--AMBIENT AIR QUALITY SURVEILLANCE--Table of Contents Subpart C--State and Local Air Monitoring Stations (SLAMS) Sec. 58.27 Compliance date for air quality data reporting. The annual air quality data reporting requirements of Sec. 58.26 apply to data collected after December 31, 1980. Data collected before January 1, 1981, must be reported under the reporting procedures in effect before the effective date of subpart C of this part.