I think the idea would be finding a like minded group of people and then coming under the authority of a presbytery and working with a denomination's home mission board, etc. Sometimes it may also be useful to contact the presbytery or nearest church first (even if it is too far to drive to worship regularly) as they may be aware of others in the area who might be interested in being part of a church plant.

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Chris
Member at Grace Community Baptist Church, Mandeville, LA

Beware of a religion without holdfasts. But if I get a grip upon a doctrine they call me a bigot. Let them do so. Bigotry is a hateful thing, and yet that which is now abused as bigotry is a great virtue, and greatly needed in these frivolous times. I have been inclined lately to start a new denomination, and call it "the Church of the Bigoted." Spurgeon