1. Short title This Act may be cited as the Rebuilding Main Street Act of 2020 . 2. Extension of Federal Pandemic Unemployment Compensation (a) In General Section 2104(e)(2) of the Relief for Workers Affected by Coronavirus Act (contained in subtitle A of title II of division A of the CARES Act ( Public Law 116–136 )) is amended by striking July 31, 2020 and inserting December 31, 2020 . (b) Application to Short-Time Compensation Programs and Agreements Section 2104(i)(2) of the Relief for Workers Affected by Coronavirus Act (contained in subtitle A of title II of division A of the CARES Act ( Public Law 116–136 )) is amended— (1) in subparagraph (C), by striking and at the end; (2) in subparagraph (D), by striking the period at the end and inserting ; and ; and (3) by adding at the end the following: (E) short-time compensation under section 2108 or 2109. . 3. Improvements to Financing of Short-Time Compensation (a) States With Programs in Law Section 2108 of the Relief for Workers Affected by Coronavirus Act (contained in subtitle A of title II of division A of the CARES Act ( Public Law 116–136 )) is amended— (1) in subsection (a)— (A) in paragraph (1), by striking paragraph (3) and inserting paragraphs (3), (4), and (5)