This bill amends the penalties associated with the possession and use of psilocybin for individuals aged 18 and older. It introduces a new section, 318-B:2-f, to RSA 318-B, which outlines a tiered penalty system for offenses related to psilocybin. For a first offense, individuals will face a violation and a fine of up to $100. A second offense will result in a class B misdemeanor and a fine of up to $500, while a third offense will also incur a class B misdemeanor with a fine of up to $1,000. For fourth or subsequent offenses, the penalties will revert to those specified in RSA 318-B:26. Additionally, individuals under 18 years of age will still be subject to the penalties outlined in RSA 318-B:26.

The bill is set to take effect on January 1, 2026, and is expected to have indeterminable fiscal impacts on state and local governments, particularly concerning judicial and correctional systems. The estimated revenue and expenditures for the state and counties are projected to be $0 for the fiscal years 2025 through 2028, but the costs associated with prosecution, incarceration, probation, and parole may vary. The bill reflects a significant shift in the legal approach to psilocybin, aiming to reduce penalties for adults while maintaining stricter consequences for minors.