Is a Change Order required for Force Account?

Note that the Contract Administrator is the interpreter of the Contract Documents, and the judge both parties to the Contract (GC 3.6.1). Refer to General Conditions regarding Extra Work and Change Orders.

In order to comply with GC 10.3.1, how should a Contractor deal with submitting Force Account reports to the CA when there is a delay in gathering billing from suppliers?

GC 10.1.1 (3) sets out the Contractor’s entitlement to material cost and references invoice transportation and haulage costs.