This document issues temporary regulations that authorize the IRS to disclose additional items of return information requested by the Secretary of Commerce that are necessary to support statistical research and operations at the Census Bureau, specifically for the 2020 Census. Specifically, the Secretary of Commerce has requested disclosure of the ELF indicator, return processing indicator, and paid preparer code from the Form 1040 income tax return, and the payee/payor TIN, payee/payor name, street address, city, state, zip code, posting cycle week, posting cycle year, and document code from Form 1098. Because of the strong need for this data, this regulation will authorize disclosure of this return information.