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Reference the only single, comprehensive source for requirements for private fire service mains and private fire hydrants. With NFPA 24, you can be sure water supplies are adequate and ready, with up-to-date provisions for:

Underground fire service mains and their appurtenances

Yard piping that feeds automatic sprinkler systems

Yard hydrants

Standpipes and other water-based fire protection systems

The Standard also applies to combined service mains used to carry water for fire service and other uses. This user-friendly edition is consistent with NFPA 13: Automatic Sprinkler Systems, plus features a new format, with exceptions reworded into document requirements.