5 CFR 831.911 - Oversight of coverage determinations.
(a) Upon deciding that a position is a law enforcement officer or firefighter position, each agency head must notify OPM (Attention: Associate Director for Retirement and Insurance) stating the title of each position, the number of incumbents, and whether the position is primary or secondary. The Director of OPM retains the authority to revoke an agency head's determination that a position is a primary or secondary position, or that an individual's service in any other position is creditable under 5 U.S.C. 8336(c).
(e) A coverage determination issued by OPM or its predecessor, the Civil Service Commission, will not be reopened by an employing agency, unless the agency head determines that new and material evidence is available that, despite due diligence, was not available before the decision was issued.