There is no form or procedure needed to qualify to be a write-in candidate for President. Any voter can write-in a candidate's name. Write-in votes will only be tabulated if there are enough of them to contest the election.
Want to be a US Presidential write-in candidate in 2008?
Choose a state from the list on the right to see that state's requirements to make sure write-in votes for you get counted in the upcoming 2008 US Presidential election.