In the event of failure or refusal of the contractor or any
subcontractor to comply with the labor standards clauses contained in
Sec. 5.5 and the applicable statutes listed in Sec. 5.1, the Federal
agency, upon its own action or upon written request of an authorized
representative of the Department of Labor, shall take such action as may
be necessary to cause the suspension of
the payment, advance or guarantee of funds until such time as the
violations are discontinued or until sufficient funds are withheld to
compensate employees for the wages to which they are entitled and to
cover any liquidated damages which may be due.