Traditionally, designers and architects refer to the static coefficient of friction of 0.6 when selecting floor tile. The static coefficient of friction has always been a reccomendation or best practice followed but never code. TCNA has adopted a new standard that has been officially included in ANSI 2012 under section A137.1. The dynamic coefficient of friction (DCOF) is the new standard test that is required by code for all floor tile products. Tiles will be required to have a DCOF of 0.42 or higher to meet the standard. The DCOF test uses motion (and soapy wet surface) instead of a static dry/ static wet approach in testing since building occupants are in motion when slips happen on wet tile surfaces.