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Title 14: Aeronautics and Space
CHAPTER I: FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
SUBCHAPTER C: AIRCRAFT
PART 21: CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS
Subpart G: Production Certificates
21.157 - Inspections and tests.
Each holder of a production certificate shall allow the Administrator to make any inspections and tests necessary to determine compliance with the applicable regulations in this subchapter.
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