"It’s not if, but when, a mass shooting happens in your community."

– Mayor Nan Whaley, Dayton OH

When a public mass shooting takes place, it falls on our nation’s mayors to respond. UnitedOnGuns created the Mass Shooting Protocol & Playbook: A Resource for U.S. Mayors and City Managers to support local governments.

The Mass Shooting Protocol is a four-page overview of a mayor’s role during the first 24 hours after a mass shooting. The Mass Shooting Playbook is a resource guide city leaders can use to prepare for, respond to, and help survivors and their community recover from a mass shooting. For more information or to obtain a copy, click here.


  • Governing Magazine published our op-ed highlighting the response of Mayor Dee Margo three years after the El Paso Walmart shooting, "The outsized, critical role of a mayor after a mass shooting."
  • The Hill published our op-ed, "After mall shooting, yet another mayor becomes a member of the club no one wants to join."
  • UnitedOnGuns is working with the Center for Homeland Defense and Security to help mayors and city leaders prepare for a mass shooting. The options include a private briefing with a mayor's team, panel discussions at conferences for city leaders, and regional summits. Please click here for more information about how we can help your city prepare for a mass shooting.
  • Sarah C. Peck will join Florida Representative Christine Hunschofsky and Heather Fagan, Chief of Staff for Orlando Mayor Buddy Dyer, at the Florida League of Cities annual conference in Hollywood, FL on August 12, 2022. This session will provide advice to city leaders, particularly mayors and city managers, about preparing for and responding to a mass shooting and will introduce the Mass Shooting Playbook and Mass Shooting Protocol.
  • On July 1, 2022, the ICMA published "Until We Find a Way to Prevent Mass Shootings, Your City Needs to Prepare," which describes the crucial role of city leaders when the worst happens.
  • UnitedOnGuns has developed a Tabletop Exercise Template that mayors and city managers can use to plan their city's response to a mass shooting. Please contact us for more information about preparedness and training opportunities.