20 CFR § 618.760 - Qualifying requirements for, and timing and duration of, Additional Trade Readjustment Allowances.
(a) Qualifying requirements for Additional TRA. An AAW is eligible to receive Additional TRA for any week only if:
(1) The worker meets all qualifying requirements for receipt of Basic TRA in § 618.720; and
(2) Except as provided in § 618.775 for a break in training, the AAW is participating in approved training.
(1) Immediately follows the last week of entitlement to Basic TRA otherwise payable to the AAW;
(3) Begins with the first week in which such training is approved under subpart F of this part, if such training is approved after the training already has commenced (although Additional TRA or training costs may not be paid for any week before the week in which the TAA approved training was approved).