; and (2) the landlord enters into an agreement with the Secretary under which the landlord will not evict any tenant until the date that is 60 days after the end of the COVID–19 emergency period. (d) COVID–19 emergency period defined In this section, the term COVID–19 emergency period has the meaning given that term under section 2. (e) Authorization of appropriations There are authorized to be appropriated to the Secretary such sums as may be necessary to carry out this section. 4. Rules of application (a) Application to existing and new emergencies This Act shall apply to a COVID–19 emergency period (as defined under section 2) in existence on the date of enactment of this Act or beginning after the date of enactment of this Act. (b) Retroactive effect With respect to the COVID–19 emergency period in existence on the date of enactment of this Act, the provisions of this Act shall apply retroactively to actions taken beginning on the first day of such emergency period.