Except as provided in subsection (b), not later than 1 year after the date on which the Secretary of the Navy promulgates a new rule, policy, or memorandum pursuant to
section 704 of title 10, United States Code, with respect to leave associated with the birth or adoption of a child, the Secretary of the department in which the Coast Guard is operating shall promulgate a similar rule, policy, or memorandum that provides leave to officers and enlisted members of the Coast Guard that is equal in duration and compensation to that provided by the Secretary of the Navy.