The executive summary:
Windsheild: transparent and does not encroach beyond the AS/1 line marked on the windsheild (these rules are generally taken from Federal Motor Vehicle Safety Standards Nos. 205)
Side windows: a total solar reflectance of visible light of not more than 25 percent as measured on the nonfilm side and a light transmittance of at least 28 percent in the visible light range
Windows behind the driver: total solar reflectanec of visible light of not more than 35 percent measured on the nonfilm side, and a light transmittance of at least 15 percent in the visible light range (6 percent for multipurpose passenger vehicles)
Every percentage measurement is subject to a tolerance of plus or minus 3 percent.
Infractions are punishable as a nonmoving violation as provided in chapter 318.
Window tint laws in the state of Florida are covered by Title XXIII, Chapter 316, sections 2951-2957. Tint is refered to as a "sunscreening material" by the Florida statutes. Further definitions are found in Section 2951.