New IEEE Standard - Active. SINGLE-USER EDITION: THIS PRODUCT IS LICENSED FOR ONE USER ONLY. Containing all editions of the National Electrical Safety Code in effect from 1973 to 2007, NESC: The Archives (1973-2007) is an invaluable authoritative resource on safety requirements for power, communications, telephone, cable TV, and railroad signal systems. Offered together for the first time on this Limited Edition user-friendly VuSpec CD-ROM, NESC: The Archives (1973-2007) embodies the expertise and hard work of the engineers who revised each edition. for a complete list of contents go to http://standards.ieee.org/findstds/prod/cds/nesc_1973.pdf. LICENSING: SINGLE-USER EDITION: THIS PRODUCT IS LICENSED FOR ONE USER ONLY.