Previously provided security training may be credited towards satisfying the requirements of this subchapter provided the owner/operator—

(a) Obtains a complete record of such training and validates the training meets requirements of §1580.115, §1582.115, or §1584.115 of this subchapter as it relates to the function of the individual security-sensitive employee and the training was provided within the schedule required for recurrent training.

(b) Retains a record of such training in compliance with the requirements of §1570.121 of this part.