; (bb) avoiding risk of a single point of failure or vulnerability; and (cc) adhering to Federal agency best practices such as those promulgated by the National Institute of Standards and Technology; and (B) in the case of an eligible entity that is a Tribe, the Tribe has complied with clauses (i) and (iii) of subparagraph (A). (4) Criteria (A) In general Not later than 1 year after the date of the enactment of this section, the Assistant Secretary, after consulting with the Administrator, shall issue rules, after providing the public with notice and an opportunity to comment, prescribing the criteria for selecting eligible entities for grants under this subsection. (B) Requirements The criteria shall— (i) include performance requirements and a schedule for completion of any project to be financed by a grant under this subsection; and (ii) specifically permit regional or multi-State applications for funds. (C) Updates The Assistant Secretary shall update such rules as necessary. (5) Grant certifications Each eligible entity shall certify to the Assistant Secretary at the time of application for a grant under this subsection, and each eligible entity that receives such a grant shall certify to the Assistant Secretary annually thereafter during any period of time the funds from the grant are available to the eligible entity, that— (A) beginning on the date that is 180 days before the date on which the application is filed, no portion of any 9–1–1 fee or charge imposed by the eligible entity (or in the case that the eligible entity is not a State or Tribe, any State or taxing jurisdiction within which the eligible entity will carry out, or is carrying out, activities using grant funds) are obligated or expended for a purpose or function not designated under the rules issued pursuant to section 6(f)(3) of the Wireless Communications and Public Safety Act of 1999 ( 47 U.S.C. 615a–1(f)(3) ) (as such rules are in effect on the date on which the eligible entity makes the certification) as acceptable