http://www.flsenate.gov/Statutes/index.cfm?App_mode=Display_Statute&Search_String=&URL=CH0316/SEC613.HTM&Title=->2001->CH0316->Section%20613
1)(a) Every operator of a motor vehicle as defined herein, while transporting a child in a motor vehicle operated on the roadways, streets, or highways of this state, shall, if the child is 5 years of age or younger, provide for protection of the child by properly using a crash-tested, federally approved child restraint device. For children aged through 3 years, such restraint device must be a separate carrier or a vehicle manufacturer's integrated child seat. For children aged 4 through 5 years, a separate carrier, an integrated child seat, or a seat belt may be used.
(b) The Division of Motor Vehicles shall provide notice of the requirement for child restraint devices, which notice shall accompany the delivery of each motor vehicle license tag.
(2) As used in this section, the term "motor vehicle" means a motor vehicle as defined in s. 316.003 that is operated on the roadways, streets, and highways of the state. The term does not include:
(a) A school bus as defined in s. 316.003(45).
(b) A bus used for the transportation of persons for compensation, other than a bus regularly used to transport children to or from school, as defined in s. 316.615(1)(b), or in conjunction with school activities.
(c) A farm tractor or implement of husbandry.
(d) A truck of net weight of more than 5,000 pounds.
(e) A motorcycle, moped, or bicycle.
(3) The failure to provide and use a child passenger restraint shall not be considered comparative negligence, nor shall such failure be admissible as evidence in the trial of any civil action with regard to negligence.