FL S0518

Defines "residential property" as a single-family detached building actively used for single-family residential purposes and either a conforming or legally nonconforming use under local land development regulations.

Prohibits local governments from requiring notices, applications, approvals, permits, fees, or mitigation for tree pruning, trimming, or removal on residential property when the owner possesses documentation from an ISA-certified arborist or Florida licensed landscape architect.

Establishes that a tree "poses an unacceptable risk" when removal is the only practical means of mitigating its risk below moderate level, as determined by Best Management Practices - Tree Risk Assessment, Second Edition (2017).

Prohibits local governments from requiring property owners to replant trees that were pruned, trimmed, or removed in accordance with this section.

Exempts the exercise of specifically delegated authority for mangrove protection under Florida Statutes sections 403.9321-403.9333 from this section's provisions.