Possession of up to one ounce of marijuana is no longer a criminal offense in Rhode Island. 

As of today a new law makes possession of small amounts of pot a civil offense with a $150 fine.   Rhode Island is now one of 14 states that have enacted marijuana decriminalization laws.

Previously if you were caught you would face criminal charges for the possession. There will be stiffer penalties if a minor is caught with the drug, however. They will have to take an education course of drugs and alcohol, and then pay the fine.