; and (B) may submit a request for arbitration in lieu of an appeal under subsection (a) at any time before the Administrator of FEMA has issued a final agency determination. . 619. Unified Federal environmental and historic preservation review (a) Review and analysis Not later than 180 days after the date of enactment of this Act, the Administrator of the Federal Emergency Management Agency shall review the Unified Federal Environmental and Historic Preservation review process established pursuant to section 429 of the Robert T. Stafford Disaster Relief and Emergency Assistance Act ( 42 U.S.C. 5189g ), and submit a report to the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Homeland Security and Governmental Affairs of the Senate that includes the following: (1) An analysis of whether and how the unified process has expedited the interagency review process to ensure compliance with the environmental and historic requirements under Federal law relating to disaster recovery projects. (2) A survey and analysis of categorical exclusions used by other Federal agencies that may be applicable to any activity related to a Presidentially declared major disaster or emergency under such Act. (3) Recommendations on any further actions, including any legislative proposals, needed to expedite and streamline the review process. (b) Regulations After completing the review, survey, and analyses under subsection (a), but not later than 2 years after the date of enactment of this Act, and after providing notice and opportunity for public comment, the Administrator shall issue regulations to implement any regulatory recommendations, including any categorical exclusions identified under subsection (a), to the extent that the categorical exclusions meet the criteria for a categorical exclusion under section 1508.4 of title 40, Code of Federal Regulations, and section II of DHS Instruction Manual 023–01–001–01. 620. Closeout incentives (a) Facilitating closeout Section 705 of the