JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. D1. American Codes D1.A. American Codes - Steel Design per AISC 360 Unified Specification D1.B. American Codes - Steel Design per AISC 9th Edition D1.C. American Codes - Steel Design per AISC LRFD Specification D1.D. American Codes - Steel Design per AASHTO Specifications D1.E. American Codes - Steel Design per AISI Cold Formed Steel Code D1.F. American Codes - Concrete Design per ACI 318 D1.G. American Codes - Timber Design per AITC Code D1.H. American Codes - Aluminum Design per 1994 ADM D1.I. American Codes - Steel Design per ASCE Transmission Tower Codes D1.J. American Codes - Steel Design per API 2A-WSD 2000 D1.K. American Codes - Steel Design per ANSI/AISC N690 Design Codes D1.L. American Codes - Steel Design per ASME NF Codes Parent topic: D. Design Codes