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Regulations last checked for updates: May 23, 2025

Title 40 - Protection of Environment last revised: Apr 23, 2028
All TitlesTitle 40Chapter IPart 75Subpart C - Subpart C—Operation and Maintenance Requirements
  • § 75.20 - Initial certification and recertification procedures.
  • § 75.21 - Quality assurance and quality control requirements.
  • § 75.22 - Reference test methods.
  • § 75.23 - Alternatives to standards incorporated by reference.
  • § 75.24 - Out-of-control periods and adjustment for system bias.
authority: 42 U.S.C. 7401-7671q and 7651k note
source: 58 FR 3701, Jan. 11, 1993, unless otherwise noted.
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