1 EXHIBIT 10(h)(3) [DEPARTMENT OF THE NAVY LETTERHEAD] 5870 Ser 00CC/700 May 15, 1995 James C. Witham, President U.S. Alcohol Testing of America, Inc. 10410 Trademark Street Rancho Cucamonga, California 91730 Re: Partially exclusive license under U.S. Patent Application Serial No. 07/486,024, now U.S. Patent No. 5,183,740 Dear Mr. Witham: This is notice that under the GATT/WTO treaty (more formally the Uruguay Round Agreements Act, Public Law 103-465), the expiration date of the referenced patent has been extended to February 23, 2010. Since the expiration date of this license agreement is predicated on the expiration date of the '740 patent, it too is extended to February 23, 2010. Sincerely, /s/ Roger J. Erickson ROGER J. ERICKSON Staff Patent Attorney Copy to: Dr. Richard H. Rein, NRL Code 1004 Thomas E. McDonnell, NRL Code 3008.2 E-7