The National Fire Protection Agency Instituted A Color-Coding System For Fire Hydrants. In an effort to make it easier for firefighters to know what a specific hydrant will supply, the national fire protection agency (nfpa) recommends that fire departments and water districts.

In an effort to make it easier for firefighters to know what a specific hydrant will supply, the national fire protection agency (nfpa) recommends that fire departments and water districts.