relative to stormwater management for solar arrays.

SB 65 streamlines permitting for small solar installations by creating a simplified "permit by notification" process for projects under 5 megawatts (MW) that alter terrain for solar panels. This applies to most solar projects but excludes those in protected shoreland areas (as defined by RSA 483-B), which must still follow standard permitting. The law requires the department to adopt these rules by January 1, 2026, and allows temporary waivers under existing rules until then. Signed into law on June 17, 2025, it directly affects solar developers and local permitting authorities by reducing administrative barriers for smaller solar installations.