Nearly 20 states across the country have decriminalized non-medical cannabis use.
Learn More about Medical Marijuana.
As legalization sweeps the nation, some states are granting expungement while others continue to lock up non-violent marijuana offenders.
Drugged driving laws vary from state to state, and in some areas, different rules apply to patients.
Get answers to your questions about medical marijuana, legalization and more with expert insight.
How cannabis reform is taking hold around the globe.
The history and future of federal marijuana laws.
The qualifying conditions for medical marijuana vary between states.
