1. Short title This Act may be cited as the COVID-19 Serving the Homeless by Expanding the List of Tenant Eligible Residences Act of 2020 or the SHELTER Act of 2020 . 2. Covid-emergency housing voucher program (a) Authorization of appropriations There is authorized to be appropriated such sums as may be necessary for fiscal year 2020 to fund 500,000 incremental vouchers for tenant-based assistance under the housing choice voucher program under section 8(o) of the United States Housing Act of 1937 ( 42 U.S.C. 1437f(o) ), to be made available in accordance with such section 8(o) except to the extent otherwise provided in this section. (b) Eligible families Housing voucher assistance under this section may be provided on behalf only of low-income families who, as of the creating a disaster recovery voucher recovery program for individuals who were unsheltered or living in shelters as of the declaration on March 13, 2020, by the President under the Robert T. Stafford Disaster Relief and Emergency Assistance Act ( 42 U.S.C. 4121 et seq.) of the emergency relating to the Coronavirus Disease 2019 (COVID-19) pandemic. (c) Eligible dwelling units In addition to dwelling units eligible to be rented using assistance under section 8(o) of the United States Housing Act of 1937, rental assistance under this section may be used to rent dwelling units that meet the following requirements: (1) Types of housing The dwelling unit is of one of the following types: (A) Special housing types All special housing types identified in section 982.601 of the Secretary’s regulations (24 C.F.R. 982.601). (B) Junior accessory dwelling units A dwelling unit that— (i) does not exceed 500 square feet in size