# Compliance evidence pack (UNOFFICIAL)

- **Question:** UFC 3-410-04
- **Generated:** 2026-07-21 17:27 UTC
- **e-Publishing catalog checked:** 2026-07-12
- **Supplement layer:** none selected
- **Source:** CheckMyAFI (https://checkmyafi.com) — unofficial reference

> **UNOFFICIAL — VERIFY BEFORE CITING.** Quotes come from indexed copies of public publications. The certified PDF on e-Publishing is the only authoritative source. Your MAJCOM/unit supplement may be stricter.

## Controlling Air Force guidance (quoted)

**DAFMAN 91-203 para 22.7.3, p. 225** (effective/current as of 2026-06-25)

> h an airflow switch or equally reliable method interlocked to sound an audible alarm upon failure of the ventilation system. (T-0) Note: DAFMAN91-203 24 FEBRUARY 2026 225 Coordinate with installation CE and installation BE to assist in the proper selection of a ventilation system. 22.7.2.3. Ventilation ducts and airflow requirements will comply with UFC 3-410-04, Industrial Ventilation, and NFPA 91, Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Noncombustible Particulate Solids, and 29 CFR § 1910.106, Table H-11, for vent line diameters. (T-0) 22.7.3. Storage Cabinets. All flammable/combustible storage cabinets will be listed/approved for the specific class of storage. (T-0) Refer to 29 CFR § 1910.106 and NFPA 30 for additional information. Note: Metal storage

Official source: https://static.e-publishing.af.mil/production/1/af_se/publication/dafman91-203/dafman91-203.pdf

## Supplement deltas

_No supplement passage retrieved — check the supplement chain before citing._

## Federal / DoD standards implemented (quoted)

_No federal/DoD passage retrieved._

## NFPA standards (cited by reference — copyrighted, not quoted)

- **NFPA 70** National Electrical Code — cited by DAFMAN 91-203 — official viewer: https://link.nfpa.org/free-access/publications/70/latest
- **NFPA 30** Flammable and Combustible Liquids Code — cited by DAFMAN 91-203 — official viewer: https://link.nfpa.org/free-access/publications/30/latest
- **NFPA 70E** Electrical Safety in the Workplace — cited by DAFMAN 91-203 — official viewer: https://link.nfpa.org/free-access/publications/70E/latest

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Retrieval confidence: 100.0 · CheckMyAFI is not an official Air Force product. Verify every citation against the certified publication.