This site links to the presention by Fred Tepfer on January 30, 2018, in the Human Context of Design class, Department of Architecture, in 177 Lawrence Hall at the University of Oregon. Please contact me for re-use permission. Access for non-commercial use will be granted free of charge .

The presentation was created in Apple Keynote, which I use and recommend, and exported as 16.1 Mb .pdf of the presentation.

Three national sites for universal design information:
http://www.ap.buffalo.edu/idea
http://www.design.ncsu.edu/cud/univ_design/princ_overview.htm
http://www.tracecenter.org
The source of much accessibility information at the Federal level:
http://www.access-board.gov
Latest Federal ADA standards are at:
http://www.ada.gov/2010ADAstandards_index.htm
The Oregon building code (based on the IBC)