Connecticut is encouraging research that could improve understanding of marijuana’s medicinal qualities and boost the state’s biotech industry.

A requirement that edibles come with a diamond-shaped stamp and the letters T-H-C — not just on packaging but on the edibles themselves — takes effect Saturday.

A private prison in Montana is not to blame for the death of a medical marijuana provider who was incarcerated there, a court has ruled.

Collectively, the ballot measures amount to the closest the U.S. has come to a national referendum on marijuana legalization.

A would-be grower plans to sue a Maryland commission for allegedly failing to consider racial diversity when the panel named the top 15 license applicants.

Secretary of State Jason Kander, the Democratic nominee for the U.S. Senate, said it’s “time for the state legislature to step up” and pass a law allowing medical marijuana.

Colorado’s change would put Colorado in line with 18 other states and Washington, D.C., that allow cannabis for PTSD treatment.

More than two years after Washington state launched legal marijuana sales, it’s planning to test cannabis for banned pesticides more regularly.

The Michigan House gave final approval to bills that would further regulate medical marijuana nearly eight years after it was first authorized by voters.

State regulators have approved the first adult-use cannabis retail store, to be located in Fairbanks.