US Army Chemical, Biological, and Radiological Defense Field Manual Library

This site contains non-sensitive, non-privacy-act, non-classified information only. This information is provided as a public resource; public access to this server is for retrieval only.
Password REQUIRED for access. If you are a US national or a citizen of an allied nation, email me, <>, with subject "CBR-D account", and include your true full name and a telephone number at which you can be reached (voicemail ok), to establish a free account. The return email address must be with an ISP (AOL is acceptable) or an institution of affiliation (school, company, government/military), i.e. not,,, or other domains with an anonymous clientele. No further personal information is required; this is a very basic screen to prevent automated dissemination of technical or operational military information. In establishing this account you agree not to publish or otherwise disseminate access control information provided to you. This is a secured web site. Account information is secret.

Note: On 2000-Oct-6, the Department of the Army liberalized the distribution status for most Chemical Company field manuals, including all but one (3-9) of the manuals distributed here. The 8 series manuals carry either no apparent distribution restriction, or a copyright-related one, so though they are restricted at the ADTDL (Reimer library) they are not restricted here. Except for 3-9, the below 3 series manuals are now external links to the Reimer library and require no registration or password for download. In the announcement of this change, an agent of the Army Chemical School explained ``The USACMLS believes that changing the distribution restriction for these manuals will increase NBC readiness for Army forces and will contribute to U.S. counterproliferation efforts. By changing the distribution restriction, Army personnel will have ready, unimpeded access to these critical documents through such means as the Reimer Digital Library and the USACMLS web page. It will allow more open and productive dialogue during the development of these manuals. We also believe that the open distribution of this doctrine under the provisions of Statement A will permit potential adversaries to perceive the U.S.'s robust capabilities to operate in an NBC environment which will deter the adversary's use of NBC weapons and thus directly contribute to U.S. policy for counterproliferation.'' If for any reason these manuals cease to be publiclyu available from the Reimer library, I will restore distribution directly from this site.

Note: in the spirit of heightened vigilance and diligence, I now impose additional constraints on access to USA FM 3-9, "Potential Military Chemical Agents and Compounds", the only one of the below manuals that is still password-protected. Specifically, I am restricting access to agents of defense research and government entities. If you fit this description, feel free to submit your account request, with the proviso that the reply email address be at the institution of record (i.e., not etc.).

Note of 2004-Nov-23: FM 3-4, 3-4-1, 3-19, and 3-100 no longer appear in the Reimer library, and 3-11 (renumbered to 3-11.11) is once again restricted, so these are all once again available for download here. Access will be granted on the same basis as for the special operations FM's (a much more liberal basis than for FM 3-9). As of 2005-Feb-14, FM 3-14 is also missing from Reimer so once again local.

Final note: FMs 8-9 and 8-285 can be accessed without any authentication. These manuals may be all you need to inform yourself to your satisfaction.


3-3 Chemical and Biological Contamination Avoidance2818k16 November 1992
3-3-1 Nuclear Contamination Avoidance12147k9 Sept 1994
3-4 NBC Protection3265k29 May 1992
3-4-1 Fixed Site Protection1792k16 August 1989
3-5 NBC Decontamination10393k17 November 1993
3-6 Field Behavior of NBC Agents4730k3 November 1986
3-7 NBC Field Handbook4599k29 September 1994
3-9 Potential Military Chemical/Biological Agents and Compounds4646k12 December 1990
3-11.11 Flame, Riot Control Agent, and Herbicide Operations1175k19 August 1996
3-14 NBC Vulnerability Analysis10669k12 November 1997
3-19 NBC Reconnaissance1177k19 November 1993
3-50 Smoke Operations2949k4 December 1990
3-100 Chemical Operations Principles and Fundamentals7371k8 May 1996
8-9 PDF and HTMLNATO Handbook on the Medical Aspects of
NBC Defense Operations AMEDP-6(B)
11886K/5406K1 Feb 1996
8-285Treatment of Chemical Agent Casualties and
Conventional Military Chemical Injuries
25748K22 Dec 1995

See also the special operations manual library and the Reimer digital library whence the Army freely distributes thousands of publications.

United States Policy
Biological Agents - No Use
1. The United States will not use biological agents, including toxins and all other methods of biological warfare, under any circumstances.
2. The United States will strictly limit biological research to defensive measures.
Chemical Agents - No First Use
1. US armed forces will not use lethal or incapacitating chemical agents first.
2. The United States will strictly reserve the right to retaliate, using lethal or incapacitating chemical agents, against an enemy force that has used them on US forces.
3. The authority to order or approve the first retaliatory chemical strike rests with the president of the United States.
4. The United States will avoid risk to civilian populations to the maximum extent possible.