This Agreement does not cover the following services, as elaborated in the Common Classification System and the WTO system of classification – MTN.GNS/W/120, due to paragraph 1 of Article III (Security and General Exceptions) (For a complete listing of Common Classification System, see: "http://www.sice.oas.org/trade/nafta/chap-105.asp").
i design, development, integration, test, evaluation, maintenance, repair, modification, rebuilding and installation of military systems and equipment (approximately equivalent to relevant parts of U.S. Product Service Codes A & J);
ii operation of Government-owned Facilities (approximately equivalent to U.S. Product Service Code M);
iii space services (AR, B4 & V3); and
iv services in support of military forces overseas.