Relating to: removal of vegetation obstructing outdoor advertising signs.

AB 521 simplifies the process for sign owners to remove vegetation obstructing highway advertising signs. It defines a "viewing window" as a 500-foot zone along the highway where signs must remain visible, and creates a streamlined permit system for trimming or removing obstructing vegetation within this area. Existing sign owners with permits issued since 2012 can now maintain signs without new approvals (after notifying the department 15 days in advance), while new applicants must follow a 60-day permit review process. The bill also requires sign owners to remove stumps and dispose of all vegetation removed, and to compensate the department for trees (2+ inches in diameter) removed from designated "living snow fences."