41 CFR § 302-2.8
When may I begin my travel and transportation after receiving authorization to do so?
June 9, 2020
You and your immediate family member(s) may begin travel immediately upon receipt of your authorized TA.
[FTR Amdt. 98, 66 FR 58196, Nov. 20, 2001. Redesignated by FTR Amdt. 2014-01, 79 FR 49644, Aug. 21, 2014]