48 CFR 17.109 - Contract clauses.
(b) Economic price adjustment clauses. Economic price adjustment clauses are adaptable to multiyear contracting needs. When the period of production is likely to warrant a labor and material costs contingency in the contract price, the contracting officer should normally use an economic price adjustment clause (see 16.203). When contracting for services, the contracting officer -
(1) Shall add the clause at 52.222-43, Fair Labor Standards Act and Service Contract Labor Standards - Price Adjustment (Multiple Year and Option Contracts), when the contract includes the clause at 52.222-41, Service Contract Labor Standards;
(2) May modify the clause at 52.222-43 in overseas contracts when laws, regulations, or international agreements require contractors to pay higher wage rates; or
(3) May use an economic price adjustment clause authorized by 16.203, when potential fluctuations require coverage and are not included in cost contingencies provided for by the clause at 52.222-43.