Canada’s police services told the Canadian government Tuesday that there is no chance they will be ready to enforce new laws for nationwide legalized marijuana by next summer.

Hawaii said Tuesday that it will be the first state to require marijuana sales to be handled without cash, saying it wanted to avoid robberies and other crimes targeting dispensaries.

Maine lawmakers want to double the recreational marijuana sales tax to 20 percent. The Legislature’s marijuana legalization committee will consider the issue Sept. 26.

The newly appointed board that will regulate marijuana in Massachusetts met publicly for the first time Tuesday, more than 10 months after voters voted to legalize recreational cannabis.

Frank Hawkins didn’t set out to be in the marijuana business in the town where he grew up and later became a city councilman. He resisted it at first.

An unusual attempt by Iowa to work with another state to transport medical marijuana oil across state lines is on hold amid legal concerns it could invite scrutiny from the federal government.

Vermont Gov. Phil Scott on Thursday signed an executive order establishing a Marijuana Advisory Commission that will study the best way to legalize adult-use cannabis.

Law enforcement officials and drug-policy experts took sharply differing stands Wednesday on whether Illinois should legalize general use of marijuana.

If federal Transportation Security Administration screeners find cannabis at security stations, they can alert Las Vegas police, officials said. Violators could face a misdemeanor charge or civil fines.

The state’s top marijuana regulator pledged to implement Massachusetts’ recreational cannabis law and do his best to meet an ambitious timetable for licensing and opening retail stores.