Boxborough, MA –January 4, 2007 –National Technical Systems Inc. (Nasdaq:NTSC) (NTS), a leading provider of engineering services, recently announced the expansion of the lightning test capabilities at their test laboratory in Boxborough, MA.
The Avionics Test System is capable of simulating the indirect strike (current and voltage), multi-stroke and multi-burst lightning specified in DO-160E section 22 and meeting the requirements set forth by Boeing and Airbus, as well as applicable FAA, SAE, and EUROCAE standards.
“NTS has a long history of providing our aerospace industry clients with expert testing and engineering services.” stated Dwight Moore, Chief Operating Officer, “This investment makes NTS one of the few sources for environmental, EMC and lightning testing to the requirements in the DO-160E standard. “
The NTS Boxborough facility offers extensive capabilities and experience conducting Electromagnetic Compatibility (EMC), Product Safety and Electrical testing to military, aerospace, ITE, telecommunications and other industry specifications.

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.