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Standard for Combustible Dusts

Please note:  NFPA 660 is in the Fall 2024 cycle due to the Combustible Dust Document Consolidation Plan (consolidation plan) as approved by the NFPA Standards Council.  As part of the consolidation plan, NFPA 660 (combining Standards NFPA 61, NFPA 484, NFPA 652, NFPA 654, NFPA 655, and NFPA 664) is open for public input with a closing date of January 5, 2023.

To review the NFPA 660 preliminary draft and make suggested changes, select the link below titled: "Submit a Public Input".

Current Edition: Proposed Standard

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