EVERETT, Mass. (AP) -- Voters in Everett are going to the polls to decide whether to give the green light to Steve Wynn's plan to build a $1.2 billion casino in the city.

Wynn, a Las Vegas casino operator, signed a host community agreement with city officials that calls for $30 million in advanced payments and more than $25 million in annual payments to Everett if the casino opens for business.

The vote Saturday is the first binding referendum on a casino proposal since the 2011 passage of the state's expanded gambling law.

Voter approval of a host community agreement is required before a developer can seek a casino license from the state gaming commission.

Wynn has also agreed to other conditions including the clean up of pollution on the proposed site along the Mystic River, which formerly housed a chemical plant.