40 CFR Part 53, Subpart C, Appendix A to Subpart C of Part 53 - References
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Appendix A to Subpart C of Part 53—References
(1) American National Standard Quality Systems for Environmental Data and Technology Programs—Requirements with guidance for use, ANSI/ASQC E4-2004. Available from American Society for Quality, P.O. Box 3005, Milwaukee, WI 53202 ( http://qualitypress.asq.org ).
(2) Quality Assurance Guidance Document 2.12. Monitoring PM2.5 in Ambient Air Using Designated Reference or Class I Equivalent Methods. U.S. EPA, National Exposure Research Laboratory, Research Triangle Park, NC, November 1998 or later edition. Currently available at http://www.epa.gov/ttn/amtic/pmqainf.html.
Title 40 published on 2013-07-01
no entries appear in the Federal Register after this date.