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  • NFPA
    NFPA 520: Standard on Subterranean Spaces
    This title can only be subscribed to with another NFPA title (See details)
    Edition: 2026
    $207.90
    / user per year

Content Description

Per NFPA's requirements, when purchasing NFPA 2021 Standards and/or 2020 NFPA 70 (NEC), you must subscribe to at least one more NFPA Standard to complete your purchase. In order to fulfill this requirement, we automatically add 2019 NFPA 900 to your cart. This title may be removed during checkout if you choose to add a different NFPA standard to your cart, and pricing will be recalculated accordingly.
The 2026 edition of NFPA has notable changes, including: Removal of wine storage caverns and hazardous waste repositories from scope exclusions in Chapter 1, both of which are now covered in the scope of NFPA 520 New requirements in Chapter 4 related to subterranean spaces only accessible by hoists New requirements added in Chapter 6 and Chapter 8 related to the use or storage of energy storage systems A new requirement added in Chapter 10 regarding emergency responder communication enhancement systems

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About NFPA

The mission of the international nonprofit NFPA, established in 1896, is to reduce the worldwide burden of fire and other hazards on the quality of life by providing and advocating consensus codes and standards, research, training, and education.

 

The world's leading advocate of fire prevention and an authoritative source on public safety, NFPA develops, publishes, and disseminates more than 300 consensus codes and standards intended to minimize the possibility and effects of fire and other risks.

 

NFPA membership totals more than 70,000 individuals around the world

 
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