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The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. It is not an official legal edition of the CFR.
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Nomenclature changes to part 20 appear by T.D. ATF-235, 66 FR 5473, Jan. 19, 2001, and T.D. ATF-463 and T.D. ATF-462, 66 FR 42733, 42736, Aug. 15, 2001.
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