USML Category X: personal protective equipment

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1. Body armor and helmets

Category X of the United States Munitions List (USML) is headed "Personal Protective Equipment" (22 CFR 121.1). Its first entry is body armor providing a protection level equal to or greater than NIJ RF3. Helmets and helmet shells at the same level, NIJ RF3 or greater, are listed in paragraph (a)(6). A note refers readers to National Institute of Justice Standard 0123.00, or national equivalents, for the description of armor protection levels.

Lower levels are not on the list (22 CFR 121.1). For body armor at NIJ HG1, HG2, RF1 or RF2, a note points to Export Control Classification Numbers (ECCNs) 1A005 and 1A613 on the Commerce Control List. Those entries sit under the Export Administration Regulations (EAR) rather than the International Traffic in Arms Regulations (ITAR) (22 CFR 121.0). Related armor materials are controlled in Category XIII. Face paints and clothing that defeat sensors draw on related materials that are also controlled there. Paragraphs (a)(3) and (a)(4) are reserved.

2. Other protective equipment

Paragraph (a)(2) covers personal protective clothing, equipment or face paints specially designed to protect against or reduce detection by radar, infrared or other sensors at wavelengths greater than 900 nanometers (22 CFR 121.1). Paragraph (a)(5) covers integrated helmets that incorporate optical sights or slewing devices able to aim, launch, track or manage munitions, where they are not covered in Categories VIII or XII.

Paragraph (a)(7) covers goggles, spectacles, visors, vision blocks, canopies and filters for sights or viewers with an optical density greater than 3 (22 CFR 121.1). They must use something other than common broadband absorptive dyes or UV inhibitors, such as narrow band filters or broadband limiters with high visible transparency. They must also protect against multiple visible laser wavelengths, thermal flashes from nuclear detonations, or near infrared or ultraviolet laser wavelengths.

Paragraph (a)(8) covers developmental protective equipment developed for the Department of Defense (22 CFR 121.1). Equipment in production, equipment released to Commerce by a commodity jurisdiction ruling, and equipment funded for civil and military use are excluded. It applies to contracts and funding authorizations dated January 5, 2015, or later.

3. Exoskeletons and parts

Paragraph (b) covers developmental exoskeletons funded by the Defense Department under contracts or other funding authorizations dated after January 20, 2026, and their specially designed parts (22 CFR 121.1). Exoskeletons listed elsewhere on the USML, in production, documented as subject to the EAR by a commodity jurisdiction determination, or developed for both civil and military applications are excluded.

Paragraph (d) covers parts and equipment for the category’s protective equipment (22 CFR 121.1). It lists ceramic or composite plates giving protection equal to or greater than NIJ RF3, and lenses, substrates or filters specially designed for the laser and flash protection of paragraph (a)(7). It adds materials and coatings for that equipment with optical density greater than 3, such as narrowband absorbing dyes, broadband optical switches or limiters and narrowband interference notch filters. The last entry, with an asterisk, catches anything classified, containing classified software tied to defense articles or 600 series items, or developed using classified information. The asterisk designates it as Significant Military Equipment (22 CFR 120.10).

4. Taking body armor abroad without a license

Section 123.17 of the ITAR lets an American person temporarily export, without a license, one set of Category X(a)(1) body armor, which may include one Category X(a)(6) helmet (22 CFR 123.17). The same exemption covers one set of chemical agent protective gear from Category XIV, with one additional filter canister. Three conditions apply. First, the person must declare the articles to a Customs and Border Protection officer on each departure, present the Internal Transaction Number from the electronic export filing, and present the articles for inspection.

Second, the articles must travel with the person’s baggage or effects, accompanied or unaccompanied, but not mailed (22 CFR 123.17). Third, they must be for that person’s exclusive use and not for reexport or transfer of ownership. The person must declare an intention to return them to the United States at the end of the tour, contract or assignment. Individuals using the exemption need not be registered with the State Department, but all other entities must be registered and eligible. The Internal Transaction Number comes from submitting the export information through the Customs and Border Protection electronic system, as the ITAR’s filing rules require, unless that system is unavailable.

5. Iraq, Afghanistan and restricted destinations

The exemption has specific rules for Iraq (22 CFR 123.17). It is available if the general conditions are met and the person is affiliated with the American government on official business, or traveling in support of an American government contract. It is also available to a person traveling under a direct authorization by the Government of Iraq and working for, on behalf of or at the request of that government. The person submits documentation of this electronically with the Internal Transaction Number, and documents from the Government of Iraq must include an English translation.

For Afghanistan the exemption is available if the general conditions are met (22 CFR 123.17). For countries listed in the ITAR’s section on prohibited destinations, it is available only to people affiliated with the American government on official business or traveling in support of an American government contract, with documentation filed electronically. If the articles are not returned to the United States, a detailed report must go to the Office of Defense Trade Controls Compliance.

6. Technical data

Paragraph (e) controls technical data and defense services directly related to the articles in paragraphs (a) to (d) (22 CFR 121.1). Paragraph (c) is reserved, as are paragraphs (f) to (w). Paragraph (x) handles Commerce-controlled items on the same order. Armored vehicles are covered in Category VII, ground vehicles.

Key terms

NIJ RF3	The armor protection level at or above which body armor, helmets and plates are on the USML.
Optical density greater than 3	The threshold for controlled laser and flash protection eyewear, filters and coatings.
Section 123.17 exemption	License-free temporary export of one set of body armor or chemical protective gear for personal use.
Internal Transaction Number	The number from the electronic export filing, presented to Customs and Border Protection on departure.
Developmental exoskeleton	An exoskeleton funded by the Defense Department under a funding document dated after January 20, 2026.

Every statement above links to the document behind it. The full source list for this piece is on the sources page.

This page describes public United States government programs for general information. It is not legal, regulatory or procurement advice, and it does not address the facts of any particular case.

How Sentfore supports this

Protective equipment is the baseline for anyone working in high-risk areas. Sentfore works at the delivery end of defense programs in difficult environments, providing secure movement, protective security, facilities and life support. Requirements can be sent through the contact page.