50 C.F.R. § 14.16
(a) Except for wildlife requiring a permit pursuant to part 16, 17, 18, 21, or 23 of this subchapter B, wildlife whose country of origin is Canada or the United States may be imported or exported at any of the following Customs ports of entry:
(b) Except for wildlife requiring a permit pursuant to part 16, 17, 18, 21, or 23 of this subchapter B, wildlife whose country of origin is Mexico or the United States may be imported or exported at any of the following Customs ports of entry: