Skip to content
Straight answer · sourcedLast verified 2026-07-22

Is NFPA 660 enforceable by OSHA?

NFPA 660 is a consensus standard; it is not a stand-alone federal OSHA combustible-dust regulation. OSHA inspections and citations depend on the authority used, the workplace facts, the evidence, and the procedural context. OSHA’s combustible-dust National Emphasis Program supplies inspection policy and focus, but it should not be described as a complete facility design rule or an automatic citation.

[SRC-01] opens source in a new tab[SRC-02] opens source in a new tab[SRC-03] opens source in a new tab

Free / no signup

Check your DHA timeline

  1. Facility profile
  2. Compliance snapshot

Leave blank if the facility has no prior DHA.

Used only for the enforcement-context snapshot.

Your answers stay in the assessment until you choose to request quotes.

Preserve the actual citation and facility facts

For a real inspection, preserve the cited provision, alleged condition, affected equipment or area, material evidence, employee-exposure facts, photographs, measurements, interviews, and abatement communications. Distinguish a federal OSHA workplace from one under an approved State Plan. Local fire or building authorities can follow different adoption and enforcement paths, while permits, insurers, and contracts may create other obligations.

[SRC-01] opens source in a new tab[SRC-02] opens source in a new tab[SRC-03] opens source in a new tab

Keep consensus standards and legal authority distinct

Consensus standards can matter as technical evidence, but a website should not collapse that role into the claim that every NFPA sentence is directly enforceable everywhere. Nor should it promise that following one summary eliminates liability. The current standard and the actual cited authority need separate review.

[SRC-01] opens source in a new tab[SRC-02] opens source in a new tab[SRC-03] opens source in a new tab

Prepare evidence without claiming a legal outcome

An EHS team can prepare by keeping representative material records, process and equipment documentation, housekeeping and maintenance evidence, incident learning, change records, the DHA basis, and recommendation closure accessible. When an inspection or citation is active, obtain advice from appropriately qualified technical and legal professionals. DustDHA provides sourced planning context, not a legal opinion.

[SRC-01] opens source in a new tab[SRC-02] opens source in a new tab[SRC-03] opens source in a new tab
Related desk

Keep the evidence chain connected.

Each link moves to one parent resource or an adjacent source-backed question. No material-property pages publish until their data licence gate clears.

Plain answers

Questions this page can answer.

Free next step

Check your facility’s DHA timeline.

Six questions, a complete on-screen snapshot, and no signup wall.

Open the tracker