A law signed into effect by Massachusetts Governor Maura Healey on Sunday appears to make the delivery of cannabis products largely legal statewide, potentially upending the town of Nantucket’s crackdown on a delivery service affiliated with local marijuana dispensary ACK Natural.

“Limited delivery of marijuana or marijuana products to consumers shall be allowed in any municipality in the commonwealth,” the law reads in part.

Healey’s signature on the bill comes even as the town is embroiled in a dispute with ACK Natural over a delivery service operated by Social J, a licensed marijuana courier, in partnership with the dispensery.

The town has issued two cease and desist letters to ACK Natural, citing a Nantucket bylaw that prohibits the delivery of cannabis products.

“While the Town is aware of the Company’s recent website update claiming that delivery services are temporarily ‘halted’ and will soon be ‘back,’ this language is inherently misleading and confirms a persistent intent to resume services in direct defiance of the terms of the Agreement,” town manager Libby Gibson wrote in one cease and desist letter. “This posture, coupled with the Company’s ongoing marketing and advertisement of delivery services on third-party platforms and other sources, constitutes a bad-faith, continuous violation. The Town will not tolerate these deceptive practices.”

The bylaw may now be moot, though ACK Natural representatives previously argued that it was already invalidated by conflicting state laws.

“If it’s inconsistent with state law, it doesn’t stand up,” attorney Arthur Reade, who represents ACK Natural, told the Current previously. “State law prevails over local regulations.”

Representatives of the town and ACK Natural did not immediately return requests for comment.

The law does provide that “a municipality that does not authorize retail marijuana establishment licenses within its limits may…prohibit delivery of marijuana or marijuana products,” but Nantucket allows marijuana establishment licenses with Select Board approval.

The reform also increases the amount of marijuana a person can legally possess from one to two ounces, reduces the Cannabis Control Commission from five members to three, and ups the cap on the number of licenses a retailer can hold from three to six, among other changes.

The law overhauls the Cannabis Control Commission, which has been at the center of several controversies in recent years.