Local public school systems are preparing for nationwide student demonstrations in response to a school shooting in Parkland, Fla., that killed 17 people and sparked a gun control debate.

Organizers around the country are calling for a 17-minute school walkout on March 14, exactly one month after the shooting at Marjory Stoneman Douglas High School, according to APS Superintendent Meria Carstarphen, who said that the district will support students that participate.

Participation in the approved demonstrations is optional, but any students who participate in non-sanctioned demonstrations will be punished, Carstarphen wrote.

DeKalb Schools Superintendent R. Stephen Green said in a letter to parents that the district will support students who peacefully protest as long as they do not disrupt school operations or threaten the safety of students and staff.

Fulton County Schools said in a press release it will support student demonstrations as long as they do not occur during instructional time.

None of the school districts have plans for major security changes in the wake of the shooting, though APS says it will resume “active shooter” drills.