; (4) by redesignating paragraphs (4) through (6) as paragraphs (5) through (7), respectively; and (5) by inserting after paragraph (3), the following: (4) The Secretary may amend the regulations prescribed under paragraph (1) to provide that the standards described in paragraph (2)(A) take into consideration improvements in the health and safety of occupants of dwelling units, and other nonenergy benefits, from weatherization. . (d) Contractor optimization (1) In general The Energy Conservation and Production Act is amended by inserting after section 414B ( 42 U.S.C. 6864b ) the following: 414C. Contractor optimization (a) In general The Secretary may request that entities receiving funding from the Federal Government or from a State through a weatherization assistance program under section 413 or section 414 perform periodic reviews of the use of private contractors in the provision of weatherization assistance, and encourage expanded use of contractors as appropriate. (b) Use of training funds Entities described in subsection (a) may use funding described in such subsection to train private, non-Federal entities that are contracted to provide weatherization assistance under a weatherization program, in accordance with rules determined by the Secretary. . (2) Table of contents amendment The table of contents for the Energy Conservation and Production Act is amended by inserting after the item relating to section 414B the following: Sec. 414C. Contractor optimization. . (e) Financial assistance for WAP enhancement and innovation (1) In general The Energy Conservation and Production Act is amended by inserting after section 414C (as added by subsection (d) of this section) the following: 414D. Financial assistance for WAP enhancement and innovation (a) Purposes The purposes of this section are— (1) to expand the number of dwelling units that are occupied by low-income persons that receive weatherization assistance by making such dwelling units weatherization-ready