CFR›Title 9›Chapter I›Part 147›Subpart F ContainsSections 147.51–147.54CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Subpart F—Authorized Laboratories and Approved Tests and Sanitation Procedures Sections 147.51 § 147.51 Definitions. 147.52 § 147.52 Authorized laboratories. 147.53 § 147.53 Approved tests and sanitation procedures. 147.54 § 147.54 Approval of diagnostic test kits not licensed by the Service. Source79 FR 38766, July 9, 2014, unless otherwise noted. Previous E Subpart E—Procedure for Changing National Poultry Improvement Plan