; and (B) in subparagraph (A) (as so designated), by striking the period at the end and inserting the following: ; and (B) private entities that are contracted to provide weatherization assistance under this part, in accordance with rules determined by the Secretary. . (2) Contractor optimization The Energy Conservation and Production Act is amended by inserting after section 414B ( 42 U.S.C. 6864b ) the following: 414C. Contractor optimization 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 414— (1) perform periodic reviews of the use of private contractors in the provision of weatherization assistance, if applicable; and (2) encourage an increased use and expanded role of contractors as appropriate. . (3) Table of contents amendment The table of contents for the Energy Conservation and Production Act ( Public Law 94–385 ; 90 Stat. 1125) is amended by inserting after the item relating to section 414B the following: Sec. 414C. Contractor optimization. . (d) Financial assistance for WAP enhancement and innovation (1) In general The Energy Conservation and Production Act ( Public Law 94–385 ; 90 Stat. 1125) is amended by inserting after section 414C (as added by subsection (c)) 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 under this section by making those dwelling units weatherization-ready; (2) to promote the deployment of renewable energy in dwelling units that are occupied by low-income persons; (3) to ensure healthy indoor environments by enhancing or expanding health and safety measures and resources available to dwellings that are occupied by low-income persons