The Commandant (CG-5P) may recommend that MARAD allow an exemption if he or she determines that:

(a) Compliance with the requirement would be contrary to public interest;

(b) Compliance with the requirement would not enhance safety or the health of the environment;

(c) Compliance with the requirement is not practical because of local conditions or because the materials or personnel needed for compliance are unavailable;

(d) National security or national economy justifies a departure from the rules; or

(e) The alternative, if any, proposed in the petition would:

(1) Ensure comparable or greater safety, protection of the environment, and quality of deepwater port construction, maintenance, and operation; and

(2) Be consistent with recognized principles of international law.