14 cfr § 21 July 8, 2019 16 32 64 128 14 cfr § 21.93 14 cfr § 21.137 14 cfr § 21.50 14 cfr 21.93 14 cfr 21.303 14 cfr 21.197 14 cfr 21.50 14 cfr 21.17 b 14 cfr 21.199 14 cfr 21.1 14 cfr 21.607 d 14 cfr 21 14 cfr 21.3 14 cfr 21.101 14 cfr 21.31
