301-71.206—What must we do if we disallow a travel claim?

You must:

(a) Pay the employee the amount of the travel claim which is not in dispute;

(b) Notify the employee that the claim was disallowed with a detailed explanation of why; and

(c) Tell the employee how to appeal the disallowance if he/she desires an appeal, and your process and schedule for deciding the appeal.

CFR