DTIRP: Defense Treaty Inspection Readiness Program
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Readiness Through Awareness

Our Mission: To ensure the continued protection of Department of Defense programs, operations, and activities by providing security preparedness education, assistance, and advice concerning the wide variety of operational activities associated with arms control implementation.


Origin and Evolution

Early Organization

The precursor to the DTIRP outreach program was the Defense Contractor Inspection Readiness Program (DCIRP). DCIRP was established in August 1990 by the Deputy Under Secretary of Defense for Security Policy to assist the defense contractor community with developing and implementing effective security countermeasures at facilities subject to inspection under the Strategic Arms Reduction Treaty (START).

The Director of the former On-Site Inspection Agency (OSIA), organized representatives from the Central Intelligence Agency (CIA), Defense Intelligence Agency (DIA), Defense Investigative Service (DIS), Federal Bureau of Investigation (FBI), National Security Agency (NSA), and the Military Services to participate in a DCIRP assessment process. From September 1990 through January 1991, these agencies surveyed 19 solid rocket motor production facilities to prepare for eventual inspection activities conducted by Soviet START inspection teams.

The surveys conducted by this group effort marked the first time the security countermeasures community addressed a potential arms control security threat in a coordinated fashion. DCIRP estimated risks to national security information and addressed industry concerns about potential threats to proprietary and confidential business information, as well as national security concerns. Through DCIRP, the U.S. government was able to demonstrate that the threats associated with on-site inspection activities can be appropriately managed through advance planning and the application of cost-effective security countermeasures.

Mission Expansion

In the fall of 1991, DCIRP was reorganized, renamed “DTIRP,” and transferred to the Assistant Secretary of Defense for Command, Control, Communications, and Intelligence [ASD(C3I)]. The new name, Defense Treaty Inspection Readiness Program (DTIRP), reflected the expansion of DTIRP’s mission to include DoD facilities, in addition to defense contractor facilities, and to include other arms control treaties and agreements in addition to START.

Although the scope of DTIRP’s mission expanded, its focus remained the same:

To provide assistance in developing cost-effective countermeasures to protect national security, proprietary, and other critical information from being compromised or exploited during arms control inspection activities.

At first, DTIRP support continued to consist largely of informal, ad hoc arrangements with various government agencies. However, it soon became clear that DTIRP’s expanded mission required a more formal support structure. On June 25, 1992, ASD(C3I) issued a memorandum designating the Director, OSIA, as the DoD Executive Agent responsible for implementing DTIRP. As lead agency, OSIA solicited and coordinated support for DTIRP among U.S. government agencies. In June 1993, ASD(C3I) issued a second memorandum directing that a DoD Instruction be prepared outlining DTIRP’s objectives.

In 1994, the DTIRP outreach program was established to meet the defense community’s need for timely information about relevant arms control implementation activities. Education and awareness quickly became a key part of DTIRP’s mission.

On July 29, 1996, the Deputy Secretary of Defense issued DoD Directive 5205.10, further formalizing DTIRP as a multi-agency, Joint Service support program. In addition to designating the Director, OSIA, as Executive Agent, the Directive assigned specific DTIRP-related responsibilities to other DoD agencies. This included establishing the DTIRP Coordination Group (DCG) to coordinate DTIRP requirements' documents and to provide advice and support.

When the Defense Threat Reduction Agency (DTRA) was established on October 1, 1998, this new agency absorbed the former OSIA and the Director, DTRA, was designated as DoD Executive Agent for DTIRP. Since that time the majority of DTIRP’s day-to-day operational activities have been conducted by personnel serving in DTRA's On-Site Inspection Directorate, Countermeasures Branch (OP-OSPC).

For more information about DTIRP and its arms control security-related support services, contact the DTIRP Outreach Program Coordinator at 1-800-419-2899, or by email at

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