On August 27, 1997, the U.S. Environmental Protection Agency (EPA) proposed amendments to 40 CFR Parts 60, 61, and 63 to reflect miscellaneous editorial changes and technical corrections throughout the parts in sections pertaining to source testing or monitoring of emissions and operations and added Performance Specification 15 (PS 15) to Appendix B of Part 60. In addition, the test methods in Appendix A of Part 60, Appendix B of Part 61, Appendix A of Part 63, and the performance specifications in Appendix B of Part 60 were restructured in the format recommended by the Environmental Monitoring Management Council (EMMC) to achieve uniformity and consistency between Agency methods (62 FR 45369). EMMC’s methods format is outlined in Appendix A of this summary. On November 18, 1997, EPA announced, in the Federal Register, the reopening of the public comment period to allow the affected public sufficient time to review and comment on the proposed action (62 FR 61483). Public comments on the proposal were requested at the time the amendments were proposed in the Federal Register. There were 28 comment letters (see Table 1- 1) submitted by facility owners and operators, trade associations, State and local air pollution control agencies, environmental consultants, and private citizens. Summaries of the comments that were submitted, along with EPA’s responses to these comments, are presented in this document. This comment summary and the Agency’s responses serve as the basis for the revisions made between proposal and promulgation.

• Summary of Comments on Test Methods Amendments Proposed in the Federal Register (PDF)(86 pp, 122 K, 10/17/2000)