Clarifies that application to collocate wireless communications equipment be reviewed by administrative officer.

This bill clarifies that applications to add wireless equipment (like cell antennas) to existing towers or structures must be reviewed and approved by a municipal administrative officer - not a planning board - within 30 business days. It updates specific limits: height increases now max 10% of original height or 20 feet (for non-right-of-way sites), width increases max 20 feet or the structure's width at that level, and equipment compound expansions limited to 30 feet in any direction. Once approved, this zoning permit covers all other required permits (e.g., building, electrical) under state construction codes. The bill directly affects wireless companies seeking to expand infrastructure on pre-approved existing structures, streamlining their permitting process.