FL S1604

Increases comprehensive plan planning periods from 5-year and 10-year minimums to 10-year and 20-year minimums, with required affidavit certification signed by county chair or mayor attesting to compliance and citing population projection sources.

Changes comprehensive plan update requirements from encouraged to mandatory, requiring all plan elements to be processed in the same amendment cycle, and prohibits publicly-initiated plan amendments if local government fails to submit notification letter and update within one year of evaluation period.

Allows state land planning agency to provide population projections to non-compliant local governments, which must initiate updates within 3 months and transmit within 12 months; permits local governments to provide alternative projections during litigation if higher than agency projections.

Expands electric substation regulations to include changes to existing substations and adds applicability to applications submitted before notice of local government adoption hearings, with 90-day approval timeline automatically deeming applications approved if no decision is rendered.

Prohibits independent special districts from complying with development agreements executed within 3 months before changes to their governing body selection method; requires newly elected/appointed bodies to review and vote on readoption within 4 months, with provision expiring July 1, 2028.