Authorizes installation of automatic standby generators in certain residences without zoning or planning board approval.

This bill allows homeowners in single or two-family residences to install automatic standby generators without needing zoning or planning board approval. It defines these generators as permanent, gas-powered backup systems that activate during power outages, classifying them as "permitted accessory uses" under existing residential zoning. Installations must follow setback rules (minimum 5-foot side/rear yard if local rules conflict), avoid front yards without approval, and comply with noise regulations except during declared emergencies. The change streamlines the process for homeowners seeking backup power while maintaining local safety and aesthetic standards.