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14 CFR §5.1

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
This part applies to all of the following:
  1. (a)Any person that holds or applies for a certificate issued under part 119 of this chapter authorizing the person to conduct operations under part 121 of this chapter.
  2. (b)Any person that holds or applies for a certificate issued under part 119 of this chapter authorizing the person to conduct operations under part 135 of this chapter.
  3. (c)Any person that holds or applies for a Letter of Authorization issued under § 91.147 of this chapter.
  4. (d)Any person that holds both a type certificate and a production certificate issued under part 21 of this chapter for the same product.
  5. (e)Any person that holds a production certificate issued under part 21 of this chapter for a product for which the person is a licensee of the type certificate for the same product.
  6. (f)Any person that applies for a production certificate under part 21 of this chapter for a product for which the person is the holder or licensee of the type certificate for the same product.
  7. (g)Any person that holds a type certificate issued under part 21 of this chapter for a product, except for persons that hold only type certificates issued under § 21.29 of this chapter, that allows another person to use the type certificate to manufacture the same product under a production certificate.