41 CFR § 301-71.208
Within how many calendar days after submission of a proper travel claim must we notify the employee of any errors in the claim?
June 9, 2020
You must notify the employee as soon as practicable after the employee's submission of the travel claim of any error that would prevent payment within 30 calendar days after submission and provide the reason(s) why the claim is not proper. However, not later than May 1, 2002, you must achieve a maximum time period of seven working days for notifying an employee that his/her travel claim is not proper.
[FTR Amdt. 92, 65 FR 21366, Apr. 21, 2000]