NFPA 851 was withdrawn in the Fall 2014 revision cycle. NFPA 851 material has been incorporated into NFPA 850. The NFPA Standards Council approved the withdrawal on November 11, 2014.
This recommended practice provides fire prevention and fire protection recommendations for hydroelectric generating plants to safeguard personnel, protect physical property, ensure continuity of power production, and control the impact of fire and fire-fighting activities on the environment.