The National Institute of Justice published Addendum 3 to NIJ Standard 0101.07, Ballistic Resistance of Body Armor, on November 25, 2025. The addendum's central revision targets section 3.2.3 of the standard, which governs the technical definition of complete penetration (CP) during ballistic testing. According to the document, complete penetration is recorded when one or more specified failure conditions are met during a laboratory evaluation of a test threat impact. The clarification matters because CP determinations directly affect whether an armor model passes or fails formal compliance testing.
Addendum 3 does not stand alone. The NIJ instructs users to incorporate its revisions as an integral part of the overall standard documentation, treating the addendum alongside the base text and the two earlier updates. Addendum 1 was released on November 12, 2024. Addendum 2 preceded the current release as well. Each successive addendum builds on the last, meaning agencies and laboratories must work from all three documents together.
Background on NIJ Standard 0101.07
NIJ Standard 0101.07 was originally published in October 2023, superseding NIJ Standard 0101.06. The standard sets minimum performance requirements and test methods for body armor intended to protect the torso against handgun and rifle ammunition. Its development involved collaboration with the U.S. Army, the National Institute of Standards and Technology, and various ballistics laboratories. ASTM International test methods serve as the foundational building blocks for the updated performance requirements.
One structural change from the prior standard is notable. NIJ Standard 0101.07 does not define ballistic protection levels internally. Instead, it references them from a companion document, NIJ Standard 0123.00, Specification for NIJ Ballistic Protection Levels and Associated Test Threats. Agencies and labs must consult both standards together to get the full technical picture.
The 0101.07 standard also introduced specific improvements to test methods for armor designed for female officers — an area where the previous standard drew criticism for inadequate evaluation protocols.
Compliance Testing and the Transition from 0101.06
The NIJ Compliance Testing Program carries responsibility for transitioning testing protocols from the old 0101.06 standard to 0101.07. That transition is ongoing. The NIJ continues to work with accredited ballistics laboratories as they move through research and development testing under the updated framework. The agency maintains a Compliant Product List to inform law enforcement agencies of armor models that have successfully met the updated performance requirements. Any model appearing on that list has cleared the full battery of testing the standard requires.
The standard is voluntary. No federal mandate compels agencies to purchase only armor certified under 0101.07. That said, according to the standard, it functions as the primary benchmark the law enforcement community uses when procuring ballistic-resistant equipment. In practice, most agencies treat NIJ compliance as a baseline requirement in their procurement specifications.
What Agencies and Labs Need to Do Next
For agencies currently mid-procurement, the immediate obligation is straightforward: confirm that any armor under evaluation has been tested against 0101.07 as amended through Addendum 3, not just the base October 2023 document or the Addendum 1 version. The NIJ's instruction to treat Addendum 3 as integral to the standard means testing conducted only against earlier iterations may not reflect the current CP definition.
For accredited ballistics laboratories, the NIJ's ongoing engagement signals that the agency expects active coordination as implementation continues. Labs moving through R&D testing phases under the new standard should verify their CP evaluation procedures align with the revised section 3.2.3 language.
The Compliant Product List remains the practical tool for purchasing officers. It reflects which armor models have cleared testing under the operative version of the standard. Agencies should check that list against the current addendum cycle before finalizing any contract. The standard addresses threats that pose life-threatening hazards to U.S. law enforcement officers, and the NIJ's iterative addendum process reflects the agency's stated intent to keep the technical requirements current as testing methodology and threat profiles develop.
