Opioid litigation.

Amends the deadline by which a political subdivision may opt back in to an opioid litigation settlement. Requires a political subdivision to submit a copy of the agreement executed between the political subdivision and the private legal counsel of the political subdivision when opting back into the opioid litigation settlement. Removes language providing that no political subdivision has any claim to any settlement proceeds for litigation against any opioid party not yet filed by the state as of a certain date. Removes certain requirements concerning the payment of costs, expenses, and attorney's fees and costs arising from opioid litigation. Changes the basis by which the agency settlement fund distributes funds to cities, counties, and towns. Reduces the percentage of opioid litigation settlement funds distributed for use of statewide treatment, education, and prevention programs for opioid use disorder. Provides that 35% of opioid litigation settlement funds are to be distributed to cities, counties, and towns for programs for treatment, prevention, and care that are best practices for opioid use disorder. Provides that funds received from the opioid settlement may not be distributed to a city, county, or town that has opted out of the settlement and that the remaining funds shall be distributed to the cities, counties, or towns that have opted into the settlement.