---
kind: "section"
citation: "14 C.F.R. § 25.855"
title: "14"
number: "25.855"
heading: "Cargo or baggage compartments."
url: "https://uscodex.org/cfr/14/25.855"
---

# §25.855. Cargo or baggage compartments.


For each cargo or baggage compartment, the following apply:

- (a) The compartment must meet one of the class requirements of [§ 25.857](/cfr/14/25.857.md).
- (b) Each of the following cargo or baggage compartments, as defined in [§ 25.857](/cfr/14/25.857.md), must have a liner that is separate from, but may be attached to, the airplane structure:
  - (1) Any Class B through Class E cargo or baggage compartment, and
  - (2) Any Class F cargo or baggage compartment, unless other means of containing a fire and protecting critical systems and structure are provided.
- (c) Ceiling and sidewall liner panels of Class C cargo or baggage compartments, and ceiling and sidewall liner panels in Class F cargo or baggage compartments, if installed to meet the requirements of [paragraph (b)(2)](#b-2) of this section, must meet the test requirements of part III of appendix F of this part or other approved equivalent methods.
- (d) All other materials used in the construction of the cargo or baggage compartment must meet the applicable test criteria prescribed in part I of appendix F of this part or other approved equivalent methods.
- (e) No compartment may contain any controls, lines, equipment, or accessories whose damage or failure would affect safe operation, unless those items are protected so that—
  - (1) They cannot be damaged by the movement of cargo in the compartment, and
  - (2) Their breakage or failure will not create a fire hazard.
- (f) There must be means to prevent cargo or baggage from interfering with the functioning of the fire protective features of the compartment.
- (g) Sources of heat within the compartment must be shielded and insulated to prevent igniting the cargo or baggage.
- (h) Flight tests must be conducted to show compliance with the provisions of [§ 25.857](/cfr/14/25.857.md) concerning—
  - (1) Compartment accessibility,
  - (2) The entries of hazardous quantities of smoke or extinguishing agent into compartments occupied by the crew or passengers, and
  - (3) The dissipation of the extinguishing agent in all Class C compartments and, if applicable, in any Class F compartments.
- (i) During the above tests, it must be shown that no inadvertent operation of smoke or fire detectors in any compartment would occur as a result of fire contained in any other compartment, either during or after extinguishment, unless the extinguishing system floods each such compartment simultaneously.
- (j) Cargo or baggage compartment electrical wiring interconnection system components must meet the requirements of [§ 25.1721](/cfr/14/25.1721.md).

## Notes

### Amendments

[Amdt. 25-72, 55 FR 29784, July 20, 1990, as amended by Amdt. 25-93, 63 FR 8048, Feb. 17, 1998; Amdt. 25-116, 69 FR 62788, Oct. 27, 2004; Amdt. 25-123, 72 FR 63405, Nov. 8, 2007; Doc. No. Docket FAA-2014-0001, Amdt. 25-142, 81 FR 7704, Feb. 16, 2016]

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701, 44702 and 44704; Pub. L. 115-254, 132 Stat 3281 (49 U.S.C. 44903 note).

### Source

Source: Docket No. 5066, 29 FR 18291, Dec. 24, 1964, unless otherwise noted.

### Amendments

[Amdt. 25-72, 55 FR 29784, July 20, 1990, as amended by Amdt. 25-93, 63 FR 8048, Feb. 17, 1998; Amdt. 25-116, 69 FR 62788, Oct. 27, 2004; Amdt. 25-123, 72 FR 63405, Nov. 8, 2007; Doc. No. Docket FAA-2014-0001, Amdt. 25-142, 81 FR 7704, Feb. 16, 2016]