; and (B) select not fewer than 4 offices at which a person shall be able to apply for a set of separate special recreation permits or commercial use authorizations, of which— (i) not fewer than 2 offices are managed by the Secretary; and (ii) not fewer than 2 offices are managed by the Secretary of Agriculture, acting through the Chief of the Forest Service. (4) Retention of authority by the applicable secretary Each of the Secretaries shall retain the authority to enforce the terms, stipulations, conditions, and agreements in a set of separate special recreation permits or commercial use authorizations issued under the pilot program established under paragraph (1) that apply specifically to the use occurring on the Federal recreational lands and waters managed by the applicable Secretary, under the authorities that apply to the applicable Federal recreational lands and waters. (5) Option to apply for separate special recreation permits or commercial use authorizations A person seeking the appropriate permits or authorizations for a multijurisdictional trip may apply for— (A) a separate special recreation permit or commercial use authorization for the use of each unit of Federal recreational lands and waters on which the multijurisdictional trip occurs