IDs are unique, except where the specifications allow these features. 4.1.2 Name, Role, Value: For all user interface components (including but not limited to: form elements, links and components generated by scripts), the name and role can be programmatically determined; states, properties, and values that can be set by the user can be programmatically set; and notification of changes to these items is available to user agents, including assistive technologies. Supported Chapter 3 Functional Performance Criteria 301 General 301.1 Scope The requirements of Chapter 3 shall apply to ICT where required by , 255 Chapter 2 (Scoping Requirements), and where otherwise referenced in any other chapter of the Revised 508 Standards or Revised 255 Guidelines. 302 Functional Performance Criteria Criteria 302.1 Without vision. Where a visual mode of operation is provided, ICT shall provide at least one mode of operation that does not require user vision. 302.2 With limited vision. Where a visual mode of operation is provided, ICT shall provide at least one mode of operation that enables users to make use of limited vision. 302.3 Without Perception of Color. Where a visual mode of operation is provided, ICT shall provide at least one visual mode of operation that does not require user perception of color. 302.4 Without Hearing. an audible mode of operation is provided, ICT shall provide at least one mode of operation that does not require user hearing. 302.5 With Limited Hearing. Where an audible mode of operation is provided, ICT shall provide at least one mode of operation that enables users to make use of limited hearing. 302.6 Without Speech. Where speech is used for input, control, or operation, ICT shall provide at least one mode of operation that does not require user speech. 302.7 With Limited Manipulation. Where a manual mode of operation is provided, ICT shall provide at least one mode of operation that does not require fine motor control or simultaneous manual operations. 302.8 With Limited Reach and Strength. Where a manual mode of operation is provided, ICT shall provide at least one mode of operation that is operable with limited reach and limited strength. 302.9 With Limited Language, Cognitive, and Learning Abilities. ICT shall provide features making its use by individuals with limited cognitive, language, and learning abilities simpler and easier.
Criteria Supporting Feature Remarks and Explanations 407.2 Contrast. Where provided, keys and controls shall contrast visually from background surfaces. Characters and symbols shall contrast visually from background surfaces with either light characters or symbols on a dark background or dark characters or symbols on a light background. Not Applicable 407.3 Input Controls. At least one input control conforming to 407.3 shall be provided for each function. See 407.3.1, 407.3.2, and 407.3.3. 407.3.1 Tactilely Discernible. Input controls shall be operable by touch and tactilely discernible without activation. Not Applicable 407.3.2 Alphabetic Keys. Where provided, individual alphabetic keys shall be arranged in a QWERTY-based keyboard layout and the “F” and “J” keys shall be tactilely distinct from the other keys. Not Applicable 407.3.3 Numeric Keys. Where provided, numeric keys shall be arranged in a 12-key ascending or descending keypad layout. The number five key shall be tactilely distinct from the other keys. Where the ICT provides an alphabetic overlay on numeric keys, the relationships between letters and digits shall conform to ITU-T Recommendation E.161 (incorporated by reference, see 702.7.1). Not Applicable 407.4 Key Repeat. Where a keyboard with key repeat is provided, the delay before the key repeat feature is activated shall be fixed at, or adjustable to, 2 seconds minimum. Not Applicable 407.5 Timed Response. Where a timed response is required, the user shall be alerted visually, as well as by touch or sound, and shall be given the opportunity to indicate that more time is needed. Not Applicable
412.2.2 Volume Gain for ICT. A method for increasing volume shall be provided for ICT. Not Applicable 412.3 Interference Reduction and Magnetic Coupling. Where ICT delivers output by a handset or other type of audio transducer that is typically held up to the ear, ICT shall reduce interference with hearing technologies and provide a means for effective magnetic wireless coupling in conformance with 412.3.1 or 412.3.2. See 412.3.1. 412.3.1 Wireless Handsets. ICT in the form of wireless handsets shall conform to ANSI/IEEE C63.19-2011 (incorporated by reference, see 702.5.1). Not Applicable 412.3.2 Wireline Handsets. ICT in the form of wireline handsets, including cordless handsets, shall conform to TIA-1083-B (incorporated by reference, see702.9.1). Not Applicable 412.4 Digital Encoding of Speech. ICT in IP-based networks shall transmit and receive speech that is digitally encoded in the manner specified by ITU-T Recommendation G.722.2 (incorporated by reference, see 702.7.2) or IETF RFC 6716 (incorporated by reference, see 702.8.1). Not Applicable 412.5 Real-Time Text Functionality. Reserved. Not Applicable 412.6 Caller ID. Where provided, caller identification and similar telecommunications functions shall be visible and audible. Not Applicable 412.7 Video Communication. Where ICT provides real-time video functionality, the quality of the video shall be sufficient to support communication using sign language. Not Applicable
413 Closed Caption Processing Technologies 413.1 General. Where ICT displays or processes video with synchronized audio, ICT shall provide closed caption processing technology that conforms to 413.1.1 or 413.1.2. Criteria Supporting Feature Remarks and Explanations 413.1.1 Decoding and Display of Closed Captions. Players and displays shall decode closed caption data and support display of captions. Not Applicable 413.1.2 Pass-Through of Closed Caption Data. Cabling and ancillary equipment shall pass through caption data. Not Applicable 414 Audio Description Processing Technologies 414.1 General. Where ICT displays or processes video with synchronized audio, ICT shall provide audio description processing technology conforming to 414.1.1 or 414.1.2. Criteria Supporting Feature Remarks and Explanations 414.1.1 Digital Television Tuners. Digital television tuners shall provide audio description processing that conforms to ATSC A/53 Digital Television Standard, Part 5 (2014) (incorporated by reference, see 702.2.1). Digital television tuners shall provide processing of audio description when encoded as a Visually Impaired (VI) associated audio service that is provided as a complete program mix containing audio description according to the ATSC A/53 standard. Not Applicable 414.1.2 Other ICT. ICT other than digital television tuners shall provide audio description processing. Not Applicable 415 User Controls for Captions and Audio Descriptions 415.1 General. Where ICT displays video with synchronized audio, ICT shall provide user controls for closed captions and audio descriptions conforming to 415.1. Criteria Supporting Feature Remarks and Explanations 415.1.1 Caption Controls. Where ICT provides operable parts for volume Not Applicable