FORT MYERS, Fla. - It's back to school for tens of thousands of students across Southwest Florida. The school bell is ringing for the start of the year in Lee, Collier, Hendry, Glades and Desoto Counties.

One of the changes will be the the number of students in each class. A new state law puts a limit at 18 for pre-K through 3rd grade, 24 for 4th through 8th grade and 25 in high school classes. The Florida School Board Association is planning a lawsuit against the class size limits. Voters decide in November if the limits should go back to being set at the school wide level.

The start of school means that buses are back on the road again and school officials are asking you to be careful near them and any students walking or riding their bikes to campus. A number of local law enforcement agencies are planning to enforce school zone speed limits as well.