PORTLAND — Known locally for their dedication to living an eco-friendly lifestyle, Portland residents Catherine “Cassi” Madison and Luke Fuller are one of three couples selected as finalists in the Clay Hill Farm Green Wedding Giveaway.

The winning couple will be determined by online voting. Members of the public can visit the contest’s website, view videos and essays from the finalists and then vote for their favorite couple. Voting ends April 3.

Madison and Fuller have spent more than a year eating food grown or harvested in Maine. Neither owns a car, and Fuller commutes to work in Scarborough on his bike, no matter the weather.

The other finalists are Jeff Court and Samantha Smith of Worcester, Mass. and Douglas Figueiredo and Amy Watson of White Plains, New York. The three couples who are finalists were chosen by a panel of judges from a pool of more than 100 entries.

This is the third year Clay Hill Farm in York has run this contest.

The contest winners will receive a wedding for up to 75 guests on July 10 at Clay Hill Farm, plus a selection of prizes including wedding photography, floral arrangements, jewelry and a honeymoon.