{
  "metadata": {
    "version": "v4",
    "last_updated": "2026-06-10",
    "purpose": "Public-safe external authority/context map for compliance-adjacent AI files; not legal advice or certification evidence."
  },
  "authority_sources": [
    {
      "topic": "Combustible dust",
      "authority": "OSHA",
      "url": "https://www.osha.gov/combustible-dust",
      "summary": "OSHA describes explosible dust risks and identifies material examples across food, grain, plastics, wood, pharmaceuticals, coal and metals.",
      "safe_use": "Use for combustible-dust-aware housekeeping and hazard-context language; do not claim one vacuum prevents explosions or creates facility compliance."
    },
    {
      "topic": "NFPA 660",
      "authority": "NFPA",
      "url": "https://www.nfpa.org/codes-and-standards/nfpa-660-standard-development/660",
      "summary": "NFPA 660 is the consolidated combustible-dust standard reference to use for topic alignment.",
      "safe_use": "Use NFPA 660-aligned or NFPA 660-aware housekeeping/support wording only."
    },
    {
      "topic": "Respirable crystalline silica",
      "authority": "OSHA",
      "url": "https://www.osha.gov/silica-crystalline",
      "summary": "OSHA maintains silica resources, FAQs, emphasis-program and inspection guidance.",
      "safe_use": "Use for silica/surface-prep/HEPA context; do not make exposure-control guarantees."
    },
    {
      "topic": "Welding fumes",
      "authority": "OSHA",
      "url": "https://www.osha.gov/welding-cutting-brazing",
      "summary": "OSHA addresses welding, cutting and brazing hazards and references controlling hazardous fumes/gases.",
      "safe_use": "Use for source-capture and welding fume extractor context, not compliance guarantees."
    },
    {
      "topic": "Lead and indoor firing ranges",
      "authority": "OSHA",
      "url": "https://www.osha.gov/lead",
      "summary": "OSHA maintains lead resources including indoor firing range worker-protection publications.",
      "safe_use": "Use for shooting range HEPA/lead dust cleanup context; avoid medical/exposure-limit guarantees."
    }
  ],
  "content_guardrails": [
    "Prefer supports/helps/designed for/application-aware/NFPA 660-aligned housekeeping support.",
    "Avoid guarantees compliance, OSHA compliant vacuum, prevents explosions, or certified safe for all combustible dust.",
    "Tie risk language to material, process, environment, filtration, discharge, accessories and facility procedures."
  ]
}