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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 40
Chapter I
Part 71 - PART 71—FEDERAL OPERATING PERMIT PROGRAMS
Subpart A [§ 71.1 - § 71.12] - Subpart A—Operating Permits
Subpart B [§ 71.21 - § 71.27] - Subpart B—Permits for Early Reductions Sources
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