Major Political Parties may nominate individuals or slates by submitting a list to the Town Clerk on or before the deadline using the Party Nomination form -
https://www.sec.state.vt.us/media/865898/2018jppartynominationfinal.pdf
Individuals may self nominate as Independent candidates by filing Nomination Papers, containing the signatures of at least 2 registered voters, with the Town Clerk on or before the deadline. Nomination Papers can be obtained by contacting the Town Clerk or from the Vermont Secretary of States web site -
https://www.sec.state.vt.us/media/865904/2018independentconsent-jpfinal.pdf