Calabasas, CA  – April 20, 2006 – National Technical Systems (Nasdaq:NTSC) (NTS), a leading provider of engineering services, is pleased to announce the acquisition of American International Registrars Corporation (AIR), located in Ventura, CA, by its registration division, National Quality Assurance, USA (NQA).

NQA is one of the world’s largest ISO Registrars, providing services for thousands of industry leaders. The acquisition of AIR establishes a presence for NQA in California, which is one of the largest certification markets in North America. The new location will allow NQA to support its large California client base, which includes NASA, Boeing, and Raytheon. This will also enable NQA to expand in the local market by offering a single source for all certification needs for clients.

“The combination of the AIR’s client base, experienced auditors, and West coast location aligns with the NQA, USA strategic initiative of providing localized services across North America,” stated Derek Coppinger, Director of Corporate Development for NQA and NTS.
“NQA and AIR are both highly respected registrars providing premier customer service,” added NQA, USA President, Kevin Beard. “AIR will provide an excellent complement to NQA, and will offer NQA’s West coast clients a local office for support. In turn, AIR clients will benefit from the opportunity to register to complementary standards not previously offered by AIR.”
“The AIR purchase is an example of our current roll-up acquisition strategy that has been deployed this year to capitalize on the current registrar market trend in the USA,” stated William McGinnis, CEO and President of NTS.

About NQA, USA

NQA, USA, headquartered in Acton, Massachusetts, was established in 1992 as a joint venture between National Quality Assurance, Limited (headquartered in London, England) and National Technical Systems, Inc. (located in Calabasas, CA, NASDQ: NTSC). NQA, USA is a world-renowned ISO 9001, ISO 14001, TS 16949, and AS9100 registrar. NQA, USA’s single point of contact saves clients time, while its well-trained, efficient staff, located nationwide, provides local attention. NQA’s worldwide operations are accredited to perform management systems registrations by ANSI - ANAB (American National Standards Institute/Registrar Accreditation Board) and UKAS (United Kingdom Accreditation Service). NQA, USA has expertise in many diverse industries including aerospace, transportation and distribution, printing, professional services, automotive, foods, electronics, computers, and software.

About NTS

National Technical Systems, Inc. is a leading provider of engineering services to the defense, aerospace, telecommunications, automotive and high technology markets. Through a world-wide network of resources, NTS provides full product life-cycle support, offering world class design engineering, compliance, testing, certification, quality registration and program management. For additional information about NTS, visit our website at or call 800-270-2516.

The statements in this press release that relate to future plans, events or performance, are forward-looking statements that involve risks and uncertainties, including risks associated with uncertainties pertaining to customer orders, demand for services and products, development of markets for the companies’ services and products and other risks identified in the companies’ SEC filings.  Actual results, events and performance may differ materially.  Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof.  The companies undertake no obligation to release publicly the result of any revisions to these forward-looking statements that may be made to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Statements in this press release regarding National Technical Systems' business which are not historical facts are "forward-looking statements" that involve risks and uncertainties. For a discussion of such risks and uncertainties, which could cause actual results to differ from those contained in the forward-looking statements, see "Risk Factors" in the Company's Annual Report or Form 10-K for the most recently ended fiscal year.