Published on: 98-29015. Notice of designation and receipt of applications. 98-29015. Ambient Air Monitoring Reference and Equivalent Methods: Designation of a New Reference Method and Receipt of Three New Applications for Reference Method Determinations
Published on: 98-3178. Final rule; correction. 98-3178. National Ambient Air Quality Standards for Particulate Matter and Revised Requirements for Designation of Reference and Equivalent Methods for PMINF2.5/INF and Ambient Air Quality Surveillance for Particulate Matter; Correction
Published on: 97-18579. Final rule. 97-18579. Revised Requirements for Designation of Reference and Equivalent Methods for PMINF2.5/INF and Ambient Air Quality Surveillance for Particulate Matter
Published on: 96-31437. Proposed rule. 96-31437. Proposed Requirements for Designation of Reference and Equivalent Methods for PMINF2.5 and Ambient Air Quality Surveillance for Particulate Matter