; and (2) by adding at the end the following: (G) Frequency of audits and inspections (i) In general Except as provided in clauses (ii) and (iii), the Secretary may not conduct any audit or inspection under this paragraph of a covered chemical facility more frequently than once every 2 years. (ii) CFATS Recognition Program Except as provided in clause (iii), in the case of a covered chemical facility that participates in the CFATS Recognition Program under subsection (c)(5) and meets compliance, audit, and inspection requirements under that program, the Secretary may not conduct any audit or inspection under this paragraph of that covered chemical facility more frequently than once every 3 years. (iii) Increased frequency of audits and inspections The Secretary may conduct audits and inspections more frequently than provided in clauses (i) and (ii) when— (I) the covered chemical facility has identified planned enhancements that have not yet been validated by an audit or inspection; (II) a deficiency or infraction at the covered chemical facility has been identified that may result in an enforcement action against the covered chemical facility; (III) an elevated or specific threat has been identified; (IV) a security incident or suspicious activity has occurred at the covered chemical facility; or (V) the Secretary determines that an inspection or audit is warranted by exigent circumstances. . 6. Personnel surety program Section 2102(d)(2)(A) of the Homeland Security Act of 2002 ( 6 U.S.C. 622(d)(2)(A) ) is amended— (1) in the matter preceding clause (i), by inserting is mandatory for each owner or operator of a covered chemical facility assigned to tier 1 or 2 and optional for each owner or operator of a covered chemical facility assigned to tier 3 or tier 4 that after carry out a Personnel Surety Program that