23 CFR 635.123 : Highways (§ 1.1 To Parts 1345-1399) — (§ 1.1 To Parts 1345-1399) — Federal Highway Administration, Department Of Transportation (§ 1.1 To Parts 974-999) — Engineering And Traffic Operations (§ 620.101 To § 669.21) — Construction And Maintenance (§ 635.101 To § 635.417) — Contract Procedures (§ 635.101 To § 635.127) — Determination and documentation of pay quantities.

(a) The STD shall have procedures in effect which will provide adequate assurance that the quantities of completed work are determined accurately and on a uniform basis throughout the State. All such determinations and all related source documents upon which payment is based shall be made a matter of record.

(b) Initial source documents pertaining to the determination of pay quantities are among those records and documents which must be retained pursuant to 49 CFR part 18.