STATE AND LOCAL TAXES (APR 1984) EXEMPTION FROM APPLICATION OF THE SERVICE CONTRACT LABOR STANDARDS TO CONTRACTS FOR MAINTENANCE, CALIBRATION, OR REPAIR OF CERTAIN EQUIPMENT CERTIFICATION (MAY 2014) COMBATING TRAFFICKING IN PERSONS (OCT 2020) NONMANUFACTURER RULE (MAR 2020) EFTA00071893 52.247-38 52.204-18 552.238-