Contract Disputes Act claims are subject to a six-year statute of limitations. While the math involved in calculating when that limitations period runs seems easy, determining when a CDA claim accrued is not always so simple. FAR 33.201 defines “accrual of a claim” as the date when the party with the claim knew or should have known all of the events that “fix the alleged liability” of the other party. But the Federal Circuit’s decision in Kellogg Brown & Root Services, Inc. v. Murphy, No. 2015-1148 (Fed. Cir. May 18, 2016) [PDF], shows that the date of accrual is not always clear.