(a)  In generalIf a Federal statute permits a Federal agency to delegate to or otherwise authorize a State to issue or otherwise administer a permit program in lieu of the Federal agency, the Federal agency with authority to carry out the statute shall—

(1)  on publication by the Council of best practices under section 4370m–1(c)(2)(B) of this title, initiate a national process, with public participation, to determine whether and the extent to which any of the best practices are generally applicable on a delegation- or authorization-wide basis to permitting under the statute; and

(2)  not later than 2 years after December 4, 2015, make model recommendations for State modifications of the applicable permit program to reflect the best practices described in section 4370m–1(c)(2)(B) of this title, as appropriate.

(b)  Best practicesLead and cooperating agencies may share with State, tribal, and local authorities best practices involved in review of covered projects and invite input from State, tribal, and local authorities regarding best practices.