Contracts for Maintenance, Calibration, or Repair of Certain Equipment-Requimments (May 2014) (41 US.C. chapter 67). (xv) 52.222-53, Exemption from Application of the Service Camact Labor Standards to Contracts for Certain Senices-Reqtimm ems (May2014) (41 U.S.C. chapter 67). (xv) 52.222-54, Bnploymcnt Eligibility Verification (Oct 2015) (E.O. 12989). (xvii) 52.222-55, Minimum gcs Unde