; and (2) the license is for purposes of operating a facility for dogs or cats at a location that the person has used as a facility for dogs or cats. . (c) Revocation of improperly granted licenses Section 19 of the Animal Welfare Act ( 7 U.S.C. 2149 ) is amended by adding at the end the following: (e) Revocation of improperly granted licenses The Secretary shall revoke a license issued after the date of enactment of this subsection if the Secretary subsequently determines that, at the time of issuance, the issuance of the license violated section 3. . (d) Regulations (1) In general The Secretary of Agriculture may prescribe such regulations as the Secretary of Agriculture determines to be necessary to implement the amendments made by this section. (2) Deadline Any regulations under paragraph (1) shall be prescribed not later than 1 year after the date of enactment of this Act.