provided for in a collective bargaining agreement, then in the absence of a minimum wage attachment for this Subcontract, neither the Subcontractor nor any lower-tier subcontractor under this Subcon- tract shall pay any service employee performing any of the Subcon-— tract work less than the wages anc fringe benefits, provided for in such collective bargaining agreements, to which such employee would be entitled if employed under the predecessor subcontract, including accrued wages and fringe benefits and any prospective increases in wages and fringe benefits provided for under such agreement. No Subcontractor or Jower-tier subcontractor under this Subcontract may be relieved of the foregoing obligation unless the Secretary of Labor or his authorized representative determines that the collective bargaining agreement applicable to service employees employed under the predecessor subcontract was not entered into as a result of arins— length negotiations, or finds, after a hearing as provided in Depart~ ment of Labor regulations, 29 CFR 4.10, that the wages and fringe benefits provided for in such agreement are substantially at variance with those which prevail for services of a character similar in the locality. 6. 7. Notification to Employees. The Subcontractor and any lower-tier sub-— contractor under this Subcontract shall notify each service employee commencing work on this Subcontract of the minimum monetary wage and any fringe benefits required to be paid pursuant to this Subcontract, ox shall post a notice of such wages and benefits in a prominent and accessible place at the worksite, using such poster as may be provided by the Department of Labor. Safe and Sanitary Working Conditions. The Subcontractor or lower-vier subcontractor shall not permit any part of tne services called for by this Subcontract to be performed in buildings or surroundings or under working conditions provided by or under the control. or supervision of the Subcontractor or lower-tier subcontractor which are unsanitary or hazardous or dangerous to the health or safety of service employees engaged to furnish these services, and the Subcontractor or lower-tier subcontractor shall comply with under 29 CFR Part 1925. 8. the safety and health standards applied Records. The Subcontractor and each lower-tier subcontractor performing work subject to the Act shall make and maintain for three years from the completion of the work records containing the information specified in subparégraphs (a) through (e) of this paragraph for ¢ach employee subject to the Act and shall make them available for inspection and tran- scription by authorized representatives of the Employment Standards Administration of the U.S. Department of Labor. (a) His name and address. (b) His work classification or classifications, rate or rates of monetary wages and Fringe benefits provided, rate or rates of fringe benefit payments in Lieu thereof, and total daily and veekly com- pensation, 22 9008673