Section 18.2 - Scope of regulations(a) This part 18 applies solely to marine mammals and marine mammal products as defined in § 18.3 . For regulations under the Act with respect to cetacea (whales and porpoises), pinnipedia, other than walrus (seals and sea lions), see 50 CFR part 216.(b) The provisions in this part are in addition to, and are not in lieu of, other regulations of this subchapter B which may require a permit or prescribe additional restrictions or conditions for the importation, exportation, and interstate transportation of wildlife. (See also part 13 of this subchapter.)