; and (iii) policies and procedures to ensure— (I) the long-term integrity of urban agricultural land easements on eligible land; (II) timely completion of acquisitions of such easements; and (III) timely and complete evaluation and reporting to the Secretary on the use of funds provided under the program. (C) Review and revision (i) Review The Secretary shall conduct a review of eligible entities certified under subparagraph (A) every three years to ensure that such entities are meeting the criteria established under subparagraph (B). (ii) Revocation If the Secretary finds that a certified eligible entity no longer meets the criteria established under subparagraph (B), the Secretary may— (I) allow the certified eligible entity a specified period of time, at a minimum 180 days, in which to take such actions as may be necessary to meet the criteria; and (II) revoke the certification of the eligible entity, if, after the specified period of time, the certified eligible entity does not meet such criteria. (c) Method of enrollment The Secretary shall enroll eligible land under this section through the use of— (1) permanent easements; or (2) easements for the maximum duration allowed under applicable State laws. (d) Technical assistance The Secretary may provide technical assistance, if requested, to assist in— (1) compliance with the terms and conditions of easements