Broward County Sheriff Scott Israel said he plans to place armed deputies at local public schools.
During a Wednesday news conference, Israel said Superintendent Robert Runcie supported the measure.
"Our deputies, who are qualified and trained, will be carrying rifles on school grounds from this point forward," Israel said.
After the deaths of 17 victims last week, Israel said law makers need to enact "common sense" gun laws.
The sheriff also addressed reports that the Coral Springs police chief feels the Broward Sheriff's Office is not giving proper credit to Coral Springs and Sunrise police officers who responded to the shooting before deputies arrived.
"Shame on anyone who would talk about credit at a time like this," Israel said.
"This is about the victims and the families who lost their loved ones, and anybody who would worry about credit at a time like this is petty."