Presently, NFPA is selling only hard cover copies of this handbook. This Handbook provides the background, guidance, and further cites relevant resources, ASTM and IEC standards. Accessed March 4, 2023. https://catalog.nfpa.org/Fire-Protection-Handbook-21st-Edition-P22371.aspx?order src=s420 2 NFPA releases new edition of the Fire Protection Handbook; FPH is regarded as the most comprehensive resource for fire and life safety industries.