title: EN 301 549
lang: en
standard:
  - id: "eu"
    label: "EN 301 549 Accessibility requirements for ICT products and services - V3.2.1 (2021-03)"
    report_heading: "EN 301 549 Report"
    url: https://www.etsi.org/deliver/etsi_en/301500_301599/301549/03.02.01_60/en_301549v030201p.pdf
    chapters:
      [
        en_301_549_functional_performance,
        en_301_549_generic_requirements,
        en_301_549_ict_with_two-way_voice,
        en_301_549_ict_with_video,
        en_301_549_hardware,
        en_301_549_web,
        en_301_549_non-web-documents,
        en_301_549_software,
        en_301_549_documentation_and_support_services,
        en_301_549_ict_providing_relay_or_emergency_service_access,
      ]
chapters:
  - id: en_301_549_functional_performance
    label: "Chapter 4: Functional Performance Statements"
    short_label: functional-performance
    order: 8
    criteria:
      - id: 4.2.1
        handle: Usage without vision
        alt_id: usage-without-vision
        components:
          - none
      - id: 4.2.2
        handle: Usage with limited vision
        alt_id: usage-with-limited-vision
        components:
          - none
      - id: 4.2.3
        handle: Usage without perception of colour
        alt_id: usage-without-perception-of-colour
        components:
          - none
      - id: 4.2.4
        handle: Usage without hearing
        alt_id: usage-without-hearing
        components:
          - none
      - id: 4.2.5
        handle: Usage with limited hearing
        alt_id: usage-with-limited-hearing
        components:
          - none
      - id: 4.2.6
        handle: Usage with no or limited vocal capability
        alt_id: usage-with-no-or-limited-vocal-capability
        components:
          - none
      - id: 4.2.7
        handle: Usage with limited manipulation or strength
        alt_id: usage-with-limited-manipulation-or-strength
        components:
          - none
      - id: 4.2.8
        handle: Usage with limited reach
        alt_id: usage-with-limited-reach
        components:
          - none
      - id: 4.2.9
        handle: Minimize photosensitive seizure triggers
        alt_id: minimize-photosensitive-seizure-triggers
        components:
          - none
      - id: 4.2.10
        handle: Usage with limited cognition, language or learning
        alt_id: usage-with-limited-cognition-language-or-learning
        components:
          - none
      - id: 4.2.11
        handle: Privacy
        alt_id: privacy
        components:
          - none
  - id: en_301_549_generic_requirements
    label: "Chapter 5: Generic Requirements"
    short_label: generic-requirements
    order: 9
    criteria:
      - id: "5.1"
        handle: Closed functionality
        alt_id: closed-functionality
        components:
          - none
      - id: 5.1.2
        handle: General
        alt_id: general
        components:
          - none
      - id: 5.1.2.1
        handle: Closed functionality
        alt_id: closed-functionality
        components:
          - none
      - id: 5.1.2.2
        handle: Assistive technology
        alt_id: assistive-technology
        components:
          - none
      - id: 5.1.3
        handle: Non-visual access
        alt_id: non-visual-access
        components:
          - none
      - id: 5.1.3.1
        handle: Audio output of visual information
        alt_id: audio-output-of-visual-information
        components:
          - none
      - id: 5.1.3.2
        handle: Auditory output delivery including speech
        alt_id: auditory-output-delivery-including-speech
        components:
          - none
      - id: 5.1.3.3
        handle: Auditory output correlation
        alt_id: auditory-output-correlation
        components:
          - none
      - id: 5.1.3.4
        handle: Speech output user control
        alt_id: speech-output-user-control
        components:
          - none
      - id: 5.1.3.5
        handle: Speech output automatic interruption
        alt_id: speech-output-automatic-interruption
        components:
          - none
      - id: 5.1.3.6
        handle: Speech output for non-text content
        alt_id: speech-output-for-non-text-content
        components:
          - none
      - id: 5.1.3.7
        handle: Speech output for video information
        alt_id: speech-output-for-video-information
        components:
          - none
      - id: 5.1.3.8
        handle: Masked entry
        alt_id: masked-entry
        components:
          - none
      - id: 5.1.3.9
        handle: Private access to personal data
        alt_id: private-access-to-personal-data
        components:
          - none
      - id: 5.1.3.10
        handle: Non-interfering audio output
        alt_id: non-interfering-audio-output
        components:
          - none
      - id: 5.1.3.11
        handle: Private listening volume
        alt_id: private-listening-volume
        components:
          - none
      - id: 5.1.3.12
        handle: Speaker volume
        alt_id: speaker-volume
        components:
          - none
      - id: 5.1.3.13
        handle: Volume reset
        alt_id: volume-reset
        components:
          - none
      - id: 5.1.3.14
        handle: Spoken languages
        alt_id: spoken-languages
        components:
          - none
      - id: 5.1.3.15
        handle: Non-visual error identification
        alt_id: non-visual-error-identification
        components:
          - none
      - id: 5.1.3.16
        handle: Receipts, tickets, and transactional outputs
        alt_id: receipts-tickets-and-transactional-outputs
        components:
          - none
      - id: 5.1.4
        handle: Functionality closed to text enlargement
        alt_id: functionality-closed-to-text-enlargement
        components:
          - none
      - id: 5.1.5
        handle: Visual output for auditory information
        alt_id: visual-output-for-auditory-information
        components:
          - none
      - id: 5.1.6
        handle: Operation without keyboard interface
        alt_id: operation-without-keyboard-interface
        components:
          - none
      - id: 5.1.6.1
        handle: Closed functionality
        alt_id: closed-functionality
        components:
          - none
      - id: 5.1.6.2
        handle: Input focus
        alt_id: input-focus
        components:
          - none
      - id: 5.1.7
        handle: Access without speech
        alt_id: access-without-speech
        components:
          - none
      - id: "5.2"
        handle: Activation of accessibility features
        alt_id: activation-of-accessibility-features
        components:
          - none
      - id: "5.3"
        handle: Biometrics
        alt_id: biometrics
        components:
          - none
      - id: "5.4"
        handle: Preservation of accessibility information during conversion
        alt_id: preservation-of-accessibility-information-during-conversion
        components:
          - none
      - id: "5.5"
        handle: Operable parts
        alt_id: operable-parts
        components:
          - none
      - id: 5.5.1
        handle: Means of operation
        alt_id: means-of-operation
        components:
          - none
      - id: 5.5.2
        handle: Operable parts discernibility
        alt_id: operable-parts-discernibility
        components:
          - none
      - id: "5.6"
        handle: Locking or toggle controls
        alt_id: locking-or-toggle-controls
        components:
          - none
      - id: 5.6.1
        handle: Tactile or auditory status
        alt_id: tactile-or-auditory-status
        components:
          - none
      - id: 5.6.2
        handle: Visual status
        alt_id: visual-status
        components:
          - none
      - id: "5.7"
        handle: Key repeat
        alt_id: key-repeat
        components:
          - none
      - id: "5.8"
        handle: Double-strike key acceptance
        alt_id: double-strike-key-acceptance
        components:
          - none
      - id: "5.9"
        handle: Simultaneous user actions
        alt_id: simultaneous-user-actions
        components:
          - none
  - id: en_301_549_ict_with_two-way_voice
    label: "Chapter 6: ICT with Two-Way Voice Communication"
    short_label: itc-two-way
    order: 10
    criteria:
      - id: "6.1"
        handle: Audio bandwidth for speech
        alt_id: audio-bandwidth-for-speech
        components:
          - none
      - id: "6.2"
        handle: Real-time text (RTT) functionality
        alt_id: real-time-text-rtt-functionality
        components:
          - none
      - id: 6.2.1.1
        handle: RTT communication
        alt_id: rtt-communication
        components:
          - none
      - id: 6.2.1.2
        handle: Concurrent voice and text
        alt_id: concurrent-voice-and-text
        components:
          - none
      - id: 6.2.2.1
        handle: Visually distinguishable display
        alt_id: visually-distinguishable-display
        components:
          - none
      - id: 6.2.2.2
        handle: Programmatically determinable send and receive direction
        alt_id: programmatically-determinable-send-and-receive-direction
        components:
          - none
      - id: 6.2.2.3
        handle: Speaker identification
        alt_id: speaker-identification
        components:
          - none
      - id: 6.2.2.4
        handle: Visual indicator of Audio with RTT
        alt_id: visual-indicator-of-audio-with-rtt
        components:
          - none
      - id: 6.2.3
        handle: Interoperability
        alt_id: interoperability
        components:
          - none
      - id: 6.2.4
        handle: RTT responsiveness
        alt_id: rtt-responsiveness
        components:
          - none
      - id: "6.3"
        handle: Caller ID
        alt_id: caller-id
        components:
          - none
      - id: "6.4"
        handle: Alternatives to voice-based services
        alt_id: alternatives-to-voice-based-services
        components:
          - none
      - id: "6.5"
        handle: Video communication
        alt_id: video-communication
        components:
          - none
      - id: 6.5.1
        handle: General (informative)
        alt_id: general-informative
        components:
          - none
      - id: 6.5.2
        handle: Resolution
        alt_id: resolution
        components:
          - none
      - id: 6.5.3
        handle: Frame rate
        alt_id: frame-rate
        components:
          - none
      - id: 6.5.4
        handle: Synchronization between audio and video
        alt_id: synchronization-between-audio-and-video
        components:
          - none
      - id: 6.5.5
        handle: Visual indicator of audio with video
        alt_id: visual-indicator-of-audio-with-video
        components:
          - none
      - id: 6.5.6
        handle: Speaker identification with video (sign language) communication
        alt_id: speaker-identification-with-video-sign-language-communication
        components:
          - none
      - id: "6.6"
        handle: Alternatives to video-based services (advisory only)
        alt_id: alternatives-to-video-based-services-advisory-only
        components:
          - none
  - id: en_301_549_ict_with_video
    label: "Chapter 7: ICT with Video Capabilities"
    short_label: itc-video
    order: 11
    criteria:
      - id: "7.1"
        handle: Caption processing technology
        alt_id: caption-processing-technology
        components:
          - none
      - id: 7.1.1
        handle: Captioning playback
        alt_id: captioning-playback
        components:
          - none
      - id: 7.1.2
        handle: Captioning synchronization
        alt_id: captioning-synchronization
        components:
          - none
      - id: 7.1.3
        handle: Preservation of captioning
        alt_id: preservation-of-captioning
        components:
          - none
      - id: 7.1.4
        handle: Captions characteristics
        alt_id: captions-characteristics
        components:
          - none
      - id: 7.1.5
        handle: Spoken subtitles
        alt_id: spoken-subtitles
        components:
          - none
      - id: 7.2.1
        handle: Audio description playback
        alt_id: audio-description-playback
        components:
          - none
      - id: 7.2.2
        handle: Audio description synchronization
        alt_id: audio-description-synchronization
        components:
          - none
      - id: 7.2.3
        handle: Preservation of audio description
        alt_id: preservation-of-audio-description
        components:
          - none
      - id: "7.3"
        handle: User controls for captions and audio description
        alt_id: user-controls-for-captions-and-audio-description
        components:
          - none
  - id: en_301_549_hardware
    label: "Chapter 8: Hardware"
    short_label: hardware
    order: 12
    criteria:
      - id: 8.1.1
        handle: Generic requirements
        alt_id: generic-requirements
        components:
          - none
      - id: 8.1.2
        handle: Standard connections
        alt_id: standard-connections
        components:
          - none
      - id: 8.1.3
        handle: Colour
        alt_id: colour
        components:
          - none
      - id: "8.2"
        handle: Hardware products with speech output
        alt_id: hardware-products-with-speech-output
        components:
          - none
      - id: 8.2.1.1
        handle: Speech volume range
        alt_id: speech-volume-range
        components:
          - none
      - id: 8.2.1.2
        handle: Incremental volume control
        alt_id: incremental-volume-control
        components:
          - none
      - id: 8.2.2.1
        handle: Fixed-line devices
        alt_id: fixed-line-devices
        components:
          - none
      - id: 8.2.2.2
        handle: Wireless communication devices
        alt_id: wireless-communication-devices
        components:
          - none
      - id: "8.3"
        handle: Stationary ICT
        alt_id: stationary-ict
        components:
          - none
      - id: 8.3.2.1
        handle: Unobstructed high forward reach
        alt_id: unobstructed-high-forward-reach
        components:
          - none
      - id: 8.3.2.2
        handle: Unobstructed low forward reach
        alt_id: unobstructed-low-forward-reach
        components:
          - none
      - id: 8.3.2.3.1
        handle: Clear space
        alt_id: clear-space
        components:
          - none
      - id: 8.3.2.3.2
        handle: Obstructed (< 510 mm) forward reach
        alt_id: obstructed-510-mm-forward-reach
        components:
          - none
      - id: 8.3.2.3.3
        handle: Obstructed (< 635 mm) forward reach
        alt_id: obstructed-635-mm-forward-reach
        components:
          - none
      - id: 8.3.2.4
        handle: Knee and toe clearance width
        alt_id: knee-and-toe-clearance-width
        components:
          - none
      - id: 8.3.2.5
        handle: Toe clearance
        alt_id: toe-clearance
        components:
          - none
      - id: 8.3.2.6
        handle: Knee clearance
        alt_id: knee-clearance
        components:
          - none
      - id: 8.3.3.1
        handle: Unobstructed high side reach
        alt_id: unobstructed-high-side-reach
        components:
          - none
      - id: 8.3.3.2
        handle: Unobstructed low side reach
        alt_id: unobstructed-low-side-reach
        components:
          - none
      - id: 8.3.3.3.1
        handle: Obstructed (≤ 255 mm) side reach
        alt_id: obstructed-255-mm-side-reach
        components:
          - none
      - id: 8.3.3.3.2
        handle: Obstructed (≤ 610 mm) side reach
        alt_id: obstructed-610-mm-side-reach
        components:
          - none
      - id: 8.3.4.1
        handle: Change in level
        alt_id: change-in-level
        components:
          - none
      - id: 8.3.4.2
        handle: Clear floor or ground space
        alt_id: clear-floor-or-ground-space
        components:
          - none
      - id: 8.3.4.3.2
        handle: Forward approach
        alt_id: forward-approach
        components:
          - none
      - id: 8.3.4.3.3
        handle: Parallel approach
        alt_id: parallel-approach
        components:
          - none
      - id: 8.3.5
        handle: Visibility
        alt_id: visibility
        components:
          - none
      - id: 8.3.6
        handle: Installation instructions
        alt_id: installation-instructions
        components:
          - none
      - id: "8.4"
        handle: Mechanically Operable parts
        alt_id: mechanically-operable-parts
        components:
          - none
      - id: 8.4.1
        handle: Numeric keys
        alt_id: numeric-keys
        components:
          - none
      - id: 8.4.2.1
        handle: Means of operation of mechanical parts
        alt_id: means-of-operation-of-mechanical-parts
        components:
          - none
      - id: 8.4.2.2
        handle: Force of operation of mechanical parts
        alt_id: force-of-operation-of-mechanical-parts
        components:
          - none
      - id: 8.4.3
        handle: Keys, tickets and fare cards
        alt_id: keys-tickets-and-fare-cards
        components:
          - none
      - id: "8.5"
        handle: Tactile indication of speech mode
        alt_id: tactile-indication-of-speech-mode
        components:
          - none
  - id: en_301_549_web
    label: "Chapter 9: Web"
    short_label: web
    order: 13
  - id: en_301_549_non-web-documents
    label: "Chapter 10: Non-Web Documents"
    short_label: non-web-documents
    order: 14
    criteria:
      - id: "10.0"
        handle: General (informative)
        alt_id: general-informative
        components:
          - none
      - id: "10.5"
        handle: Caption positioning
        alt_id: caption-positioning
        components:
          - none
      - id: "10.6"
        handle: Audio description timing
        alt_id: audio-description-timing
        components:
          - none
  - id: en_301_549_software
    label: "Chapter 11: Software"
    short_label: software
    order: 15
    criteria:
      - id: "11.0"
        handle: General (informative)
        alt_id: general-informative
        components:
          - none
      - id: "11.5"
        handle: Interoperability with assistive technology
        alt_id: interoperability-with-assistive-technology
        components:
          - none
      - id: 11.5.1
        handle: Closed functionality
        alt_id: closed-functionality
        components:
          - none
      - id: 11.5.2
        handle: Accessibility services
        alt_id: accessibility-services
        components:
          - none
      - id: 11.5.2.1
        handle: Platform accessibility service support for software that provides a user interface
        alt_id: platform-accessibility-service-support-for-software-that-provides-a-user-interface
        components:
          - none
      - id: 11.5.2.2
        handle: Platform accessibility service support for assistive technologies
        alt_id: platform-accessibility-service-support-for-assistive-technologies
        components:
          - none
      - id: 11.5.2.3
        handle: Use of accessibility services
        alt_id: use-of-accessibility-services
        components:
          - none
      - id:  11.5.2.4
        handle: 11.5.2.4 Assistive technology
        alt_id: assistive-technology
        components:
          - none
      - id: 11.5.2.5
        handle: Object information
        alt_id: object-information
        components:
          - none
      - id: 11.5.2.6
        handle: Row, column, and headers
        alt_id: row-column-and-headers
        components:
          - none
      - id: 11.5.2.7
        handle: Values
        alt_id: values
        components:
          - none
      - id: 11.5.2.8
        handle: Label relationships
        alt_id: label-relationships
        components:
          - none
      - id: 11.5.2.9
        handle: Parent-child relationships
        alt_id: parent-child-relationships
        components:
          - none
      - id: 11.5.2.10
        handle: Text
        alt_id: text
        components:
          - none
      - id: 11.5.2.11
        handle: List of available actions
        alt_id: list-of-available-actions
        components:
          - none
      - id: 11.5.2.12
        handle: Execution of available actions
        alt_id: execution-of-available-actions
        components:
          - none
      - id: 11.5.2.13
        handle: Tracking of focus and selection attributes
        alt_id: tracking-of-focus-and-selection-attributes
        components:
          - none
      - id: 11.5.2.14
        handle: Modification of focus and selection attributes
        alt_id: modification-of-focus-and-selection-attributes
        components:
          - none
      - id: 11.5.2.15
        handle: Change notification
        alt_id: change-notification
        components:
          - none
      - id: 11.5.2.16
        handle: Modifications of states and properties
        alt_id: modifications-of-states-and-properties
        components:
          - none
      - id: 11.5.2.17
        handle: Modifications of values and text
        alt_id: modifications-of-values-and-text
        components:
          - none
      - id: "11.6"
        handle: Documented accessibility usage
        alt_id: documented-accessibility-usage
        components:
          - none
      - id: 11.6.1
        handle: User control of accessibility features
        alt_id: user-control-of-accessibility-features
        components:
          - none
      - id: 11.6.2
        handle: No disruption of accessibility features
        alt_id: no-disruption-of-accessibility-features
        components:
          - none
      - id: "11.7"
        handle: User preferences
        alt_id: user-preferences
        components:
          - none
      - id: "11.8"
        handle: Authoring tools
        alt_id: authoring-tools
        components:
          - none
      - id: 11.8.1
        handle: Content technology
        alt_id: content-technology
        components:
          - none
      - id: 11.8.2
        handle: Accessible content creation
        alt_id: accessible-content-creation
        components:
          - none
      - id: 11.8.3
        handle: Preservation of accessibility information in transformations
        alt_id: preservation-of-accessibility-information-in-transformations
        components:
          - none
      - id: 11.8.4
        handle: Repair assistance
        alt_id: repair-assistance
        components:
          - none
      - id: 11.8.5
        handle: Templates
        alt_id: templates
        components:
          - none
  - id: en_301_549_documentation_and_support_services
    label: "Chapter 12: Documentation and Support Services"
    short_label: documentation-and-support-services
    order: 16
    criteria:
      - id: "12.1"
        handle: Product documentation
        alt_id: product-documentation
        components:
          - none
      - id: 12.1.1
        handle: Accessibility and compatibility features
        alt_id: accessibility-and-compatibility-features
        components:
          - none
      - id: 12.1.2
        handle: Accessible documentation
        alt_id: accessible-documentation
        components:
          - none
      - id: "12.2"
        handle: Support services
        alt_id: support-services
        components:
          - none
      - id: 12.2.2
        handle: Information on accessibility and compatibility features
        alt_id: information-on-accessibility-and-compatibility-features
        components:
          - none
      - id: 12.2.3
        handle: Effective communication
        alt_id: effective-communication
        components:
          - none
      - id: 12.2.4
        handle: Accessible documentation
        alt_id: accessible-documentation
        components:
          - none
  - id: en_301_549_ict_providing_relay_or_emergency_service_access
    label: 'Chapter 13: ICT Providing Relay or Emergency Service Access'
    short_label: itc-providing-relay-or-emergency-service-access
    order: 17
    criteria:
      - id: "13.1"
        handle: Relay services requirements
        alt_id: relay-services-requirements
        components:
          - none
      - id: 13.1.2
        handle: Text relay services
        alt_id: text-relay-services
        components:
          - none
      - id: 13.1.3
        handle: Sign relay services
        alt_id: sign-relay-services
        components:
          - none
      - id: 13.1.4
        handle: Lip-reading relay services
        alt_id: lip-reading-relay-services
        components:
          - none
      - id: 13.1.5
        handle: Captioned telephony services
        alt_id: captioned-telephony-services
        components:
          - none
      - id: 13.1.6
        handle: Speech to speech relay services
        alt_id: speech-to-speech-relay-services
        components:
          - none
      - id: "13.2"
        handle: Access to relay services
        alt_id: access-to-relay-services
        components:
          - none
      - id: "13.3"
        handle: Access to emergency services
        alt_id: access-to-emergency-services
        components:
          - none