BOSTON (AP) — Massachusetts officials aren’t expecting any quick financial windfall from the state’s new recreational marijuana law.

State Treasurer Deb Goldberg and Revenue Commissioner Michael Heffernan told lawmakers at a budget hearing on Monday not to anticipate any revenues from recreational marijuana sales or licensing in the fiscal year that starts July 1, 2017.

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In fact, Goldberg says her office will initially need state funds to implement the voter-approved law.

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The law is scheduled to take effect on Dec. 15 but retail sales aren’t expected until 2018.

A Cannabis Control Commission must first be established to license and regulate future pot shops.

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Goldberg also renewed her criticism of the 3.75 percent excise tax the law puts on retail marijuana sales, noting it’s significantly lower than in states that previously legalized recreational marijuana.