Notes
Available in versions -, 1, 10, 11, 12, 13, 14, 15, 16, 17, 2, 3, 4, 5, 6, 7, 9
valid ident in gen_identity
must not begin 75 or 76
Available in versions -, 01, 02, 03, 04, 05
Available in versions -, 00, 01, 03, 04, 05, 06, 07, 08, 09, 10, 11
must not begin 75 nor 76 ; must be = ident of head on Gphouse if position 1 ; must not be = ident of head on Gphouse if not position 1
Automatically filled by program
valid check digit
