Fullerton, CA – January 4, 2007 –National Technical Systems Inc. (Nasdaq:NTSC) (NTS), a leading provider of engineering services, announced today the addition of a new high power variable frequency programmable  power supply capabilities at their Fullerton, CA test laboratory.
The AC/DC programmable power supply is capable of supplying 90 kVA. This capability is necessary to support RTCA/DO-160D/E, MIL-STD-704D/E and ABD0100.1.8 (Airbus) requirements.
“This significant investment by NTS in the expanded power supply will allow us to provide clients with 400 and 800 Hz power.” stated Dwight Moore, Chief Operating Officer, “NTS Fullerton is now one of the few US locations able to conduct this type of testing, which is vital for suppliers to Boeing and Airbus.
The NTS Fullerton facility offers extensive capabilities and experience conducting Electromagnetic Compatibility (EMC), Product Safety and Electrical testing to military, aerospace, ITE, telecommunications, USB cable and other industry specifications. Capabilities include 200V/m to 40GHz RF immunity, multiple-burst, multiple-stroke lightning and indirect lightning effects up to level 4. The ability to supply 400 Hz and 800 Hz power allows for increased testing frequency on aircraft components for Airbus and Boeing, who have both instituted this frequency as standard.

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 www.ntscorp.com 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.