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PART 145 - NATIONAL POULTRY IMPROVEMENT PLAN FOR BREEDING POULTRY Authority:7 U.S.C. 8301-8317; 7 CFR 2.22, 2.80, and 371.4. Source:36 FR 23112, Dec. 3, 1971, unless otherwise noted. Redesignated at 44 FR 61586, Oct. 26, 1979.