Girl Scouts recommends that at least one adult volunteer be CPR/First Aid/AED certified. This certification is provided by the American Red Cross and is valid for two years. "A general First Aider is an adult volunteer who has taken Girl Scout-approved first aid and CPR training that includes specific instructions for adult and pediatric CPR, first aid, and AED (Automated External Defibrillator) training that, minimally, includes face-to-face, hands-on skill checks," - Safety Activity Checkpoints. Always check Safety Activity Checkpoints for specific activity guidance. You'll need to bring your own First Aider if your activity location does not provide personnel certified in First Aid/CPR/AED.