NFPA (National Fire Protection Association)

NFPA (National Fire Protection Association) is a global self-funded nonprofit organization, established in 1896, devoted to eliminating death, injury, property and economic loss due to fire, electrical and related hazards. Delivers information and knowledge through more than 300 consensus codes and standards, research, training, education, outreach and advocacy; and by partnering with others who share an interest in furthering their mission.

NENA-STA-020, NENA Standard for 9-1-1 Call Processing

NFPA website