I know of one situation where 2 clubs were looking for approval in one municipality. The OFSC requires only one MOU to be signed for all trails in the and in that case the Municipality was OK with that for both clubs. Individual municipality requirements may vary.
Needs to be a agreement between the 2 districts on behalf of the clubs, when dealing with this sort of thing.
OFSC can be used for resources, but the negotiation process for those agreements untimately fall in the club/district hands.