; and (2) after completion of such a study, promptly— (A) issue a notice of proposed rulemaking for the designation contemplated; or (B) publish in the Federal Register a notice that no designation is contemplated as a result of the study and the reason for such determination. (e) Implementation of designation In connection with a designation made under this section, the Secretary— (1) shall issue reasonable rules and regulations governing the use of such designated areas, including rules and regulations regarding the applicability of rules 9 and 10 of the International Regulations for Preventing Collisions at Sea, 1972, relating to narrow channels and traffic separation schemes, respectively, in waters where such regulations apply; (2) to the extent that the Secretary finds reasonable and necessary to effectuate the purposes of the designation, make the use of designated fairways and traffic separation schemes mandatory for specific types and sizes of vessels, foreign and domestic, operating in the territorial sea of the United States and for specific types and sizes of vessels of the United States operating on the high seas beyond the territorial sea of the United States; (3) may, from time to time, as necessary, adjust the location or limits of designated fairways or traffic separation schemes in order to accommodate the needs of other uses that cannot be reasonably accommodated otherwise, except that such an adjustment may not, in the judgment of the Secretary, unacceptably adversely affect the purpose for which the existing designation was made and the need for which continues; and (4) shall, through appropriate channels— (A) notify cognizant international organizations of any designation, or adjustment thereof