Regulations last checked for updates: Apr 29, 2025

Title 40 - Protection of Environment last revised: Nov 29, 2025
All TitlesTitle 40Chapter IPart 98Subpart IAppendix - Table I-9 to Subpart I of Part 98—Methods and Procedures for Conducting Emissions Test for Stack Systems
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Appendix - Table I-9 to Subpart I of Part 98—Methods and Procedures for Conducting Emissions Test for Stack Systems
[78 FR 68227, Nov. 13, 2013]
authority: 42 U.S.C. 7401-7671q.
source: 74 FR 56374, Oct. 30, 2009, unless otherwise noted.
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