Quote Originally Posted by MarcusAureliusAntoninus
Type1 - L5 Factional MIC - L2 Regional MIC
Type2 - L4 Factional MIC - L3 Regional MIC
Type3 - L3 Factional MIC - L4 Regional MIC
Type4 - L2 Factional MIC - L5 Regional MIC
The only exception being the Romans during the Camillian and Polybian eras. During the former they cannot build factional MICs except in their starting provinces and Segestica; during the latter they cannot build them outside of Italy.