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Code of Federal Regulations
C.F.R. Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER C—AIR PROGRAMS
PART 51—REQUIREMENTS FOR PREPARATION, ADOPTION, AND SUBMITTAL OF IMPLEMENTATION PLANS
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Subpart L—Legal Authority
§51.230 Requirements for all plans.
§51.231 Identification of legal authority.
§51.232 Assignment of legal authority to local agencies.
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