OK SB2240

Lowers the age restriction for prohibiting alcohol and controlled substances from 21 to 18 years old in private residences.

Establishes graduated penalties: first violation up to $500 and/or 1 year jail; second violation up to $2,500 and/or 1 year jail; third or subsequent violation is a felony with $2,500-$5,000 fine and/or up to 5 years imprisonment.

Adds felony charge with minimum 5 years imprisonment and $5,000 fine if violation results in serious bodily injury or death.

Enables municipalities to separately prosecute violations of local ordinances in addition to state charges.

Creates rebuttable presumption protecting property hosts who take reasonable precautions (controlling access, checking IDs, preventing controlled substances) to prevent underage consumption.