49 CFR 193.2719
Training: records.
(a)Each operator shall maintain a system of records which—#
(1)Provide evidence that the training programs required by this subpart have been implemented; and#
(2)Provide evidence that personnel have undergone and satisfactorily completed the required training programs.#
(b)Records must be maintained for one year after personnel are no longer assigned duties at the LNG plant.#