Section 508 Reference Guide - 1194.26 Desktop and Portable Computer Standards
1194.26(a) All mechanically operated controls and keys shall comply with §1194.23(k)(1) through (4).
1194.26(b) If a product uses touchscreens or touch-operated controls, an input method shall be provided that complies with §1194.23(k)(1) through (4).
1194.26(c) When biometric forms of user identification or control are used, an alternative form of identification or activation, which does not require the user to possess particular biological characteristics, shall also be provided.
1194.26(d) Where provided, at least one of each type of expansion slots, ports and connectors shall comply with publicly available industry standards.