14 CFR § 135.12
Previously trained crewmembers
July 13, 2020
A certificate holder may use a crewmember who received the certificate holder's training in accordance with subparts E, G, and H of this part before March 19, 1997 without complying with initial training and qualification requirements of subparts N and O of part 121 of this chapter. The crewmember must comply with the applicable recurrent training requirements of part 121 of this chapter.
[Doc. No. 27993, 60 FR 65950, Dec. 20, 1995]