(b) Each person who applies under Part 21 for such a certificate or change must show compliance with the applicable requirements of this part.
[Doc. No. 4080, 29 FR 17955, Dec. 18, 1964, as amended by Amdt. 23–34, 52 FR 1825, Jan. 15, 1987]
NEXT: Sec. 23.2 - Special retroactive requirements.
PREVIOUS: Sec. 21.621 - Transferability and duration.