; (4) establishment and delivery of financing pilots in accordance with this part; (5) coordination with existing residential retrofit programs and infrastructure development to assist deployment of the Home Energy Savings Retrofit Rebate Program; and (6) the costs of carrying out the responsibilities of the State or Indian tribe under the Home Energy Savings Retrofit Rebate Program. (b) Initial grants Not later than 60 days after receipt of a completed application for a grant under this section, the Secretary shall either make the grant or provide to the applicant an explanation for denying the grant. (c) Indian tribes The Secretary shall reserve an appropriate amount of funding made available to carry out this section for each fiscal year to make grants available to Indian tribes under this section. (d) State allotments From the amounts made available to carry out this section for each fiscal year remaining after the reservation required under subsection (c), the Secretary shall make grants available to States in accordance with section 32115. (e) Quality assurance programs (1) In general A State or Indian tribe may use a grant made under this section to carry out a quality assurance program that is— (A) operated as part of a State or local government approved energy conservation plan established under part D of title III of the Energy Policy and Conservation Act ( 42 U.S.C. 6321 et seq.); (B) managed by the office or the designee of the office that is— (i) responsible for the development of the plan under section 362 of that Act ( 42 U.S.C. 6322 ); and (ii) to the maximum extent practicable conducting an existing energy efficiency program