25 CFR 900.218 : Indians (§ 1.1 To Parts 1201-1299) — (Part 300 To Parts 1201-1299) — Bureau Of Indian Affairs, Department Of The Interior, And Indian Health Service, Department Of Health And Human Services (§ 900.1 To Parts 901-999) — Contracts Under The Indian Self-Determination And Education Assistance Act (§ 900.1 To § 900.256) — Post-Award Contract Disputes (§ 900.215 To § 900.230) — What is a claim under the CDA?

(a) A claim is a written demand by one of the contracting parties, asking for one or more of the following:

(1) Payment of a specific sum of money under the contract;

(2) Adjustment or interpretation of contract terms; or

(3) Any other claim relating to the contract.

(b) However, an undisputed voucher, invoice, or other routing request for payment is not a claim under the CDA. A voucher, invoice, or routing request for payment may be converted into a CDA claim if:

(1) It is disputed as to liability or amount; or

(2) It is not acted upon in a reasonable time and written notice of the claim is given to the awarding official by the senior official designated in the contract.