10 CFR § 35.59
Recentness of training
June 9, 2020
The training and experience specified in Subparts B, D, E, F, G, and H of this part must have been obtained within the 7 years preceding the date of application or the individual must have had related continuing education and experience since the required training and experience was completed.
[71 FR 15008, Mar. 27, 2006]