AMC 66.A.30(e) Basic experience requirements    

CAA ORS9 Decision No. 1

1. For categories A and L, the additional experience should be a minimum of 6 months in a civil aircraft maintenance environment. For categories B1, B2, B2L or B3, the additional experience should be a minimum of 12 months in a civil aircraft maintenance environment.

2. Aircraft maintenance experience gained outside a civil aircraft maintenance environment may include aircraft maintenance experience gained in armed forces, coast guards, police etc. or in aircraft manufacturing.