treated as property similar or related in service or use to the property so described. . (b) Enforcement obligations of the Department of Housing and Urban Development With respect to each property with respect to which the Secretary of Housing and Urban Development receives notification under paragraph (4) of section 1033(k) of the Internal Revenue Code of 1986, such Secretary, acting though the Departmental Enforcement Center (DEC) of the Department of Housing and Urban Development, shall ensure (not less often than every 5 years during the 30-year period described in paragraph (3)(A) of such section) that such property complies with the requirements of such paragraph (3)(A), including if necessary by obtaining the injunctive relief described in paragraph (3)(B) of such section. (c) Effective date The amendment made by this section shall apply to sales and transfers after the date of the enactment of this Act.