Wynn Resorts’ Everett casino project is one step closer to finally breaking ground as it won a crucial environmental permit on Friday.

Massachusetts Energy and Environmental Affairs Secretary Matthew Beaton issued a 27-page ruling, stating that Wynn’s plan to address traffic and environmental impacts “adequately and properly complies” with the state Environmental Policy Act, which calls for development projects to take all reasonable measures to avoid, minimize and mitigate environmental damage.

Beaton also requires Wynn to participate in paying for a new transportation planning effort to address long-term traffic problems in and around Sullivan Square, which will be led by the state Department of Transportation.

The permit allows Wynn’s $1.7b Everett casino, the Massachusetts’s largest single private development, to go through other approval process such as a request for a state permit allowing the casino to be built on waterfront property and a building permit from the Everett Planning Board.