Comment submitted by G. Valasek

ENVIRONMENTAL PROTECTION AGENCY Docket ID No. EPA?HQ?OAR?2006?0948 Air Quality: Revision to Definition of Volatile Organic Compounds? Exclusion of Compounds Publication: Federal Register, [Proposed Rules] Vol. 72, No. 189 / Monday, October 1, 2007 ; pp. 55717-55723. ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 51 Ladies and Gentlemen of the EPA: 10/30/07 It was interesting to review the subject proposed rule intended for 40 CFR Part 51. We always learn a little more about the EPA workings through these ?Background? insights. However, please update your information for the next time you publish this information that was written in the Federal Register, page 55720, footnote 2. It should read: ?These new MIR values may be found at http://pah.cert.ucr.edu/~carter/SAPRC/scales07.xls.? NOT ?.. ?These new MIR values may be found at http://pah.cert.ucr.edu/carter/SAPRC/scales07.xls.? Cordially submitted, Gary Valasek Cincinnati, Ohio gvalasek@juno.com