Nothing in sections 1601 through 1603 and 1606 through 1610 may be construed to impair the continued effectiveness of a collective bargaining agreement with respect to an agency or office that is a successor to an agency or office covered by the agreement before the succession.

The Secretary of Defense shall notify Congress of any regulations prescribed to carry out this subchapter (other than sections 1605 and 1611). Such notice shall be provided by submitting a copy of the regulations to the congressional oversight committees not less than 60 days before such regulations take effect.