WCAG 2.2 Success Criteria
Guideline 1.1 - Text Alternatives
1.1.1 Non-text Content: All non-text content that is presented to the user has a text alternative that serves the equivalent purpose, except for the situations listed below. (Level A)
Related ACT Rules:
- Element marked as decorative is not exposed secondary
- Image accessible name is descriptive
- Image button has non-empty accessible name
- Image has non-empty accessible name
- Link has non-empty accessible name secondary
- Object element rendering non-text content has non-empty accessible name
- SVG element with explicit role has non-empty accessible name
- Image not in the accessibility tree is decorative proposed
Guideline 1.2 - Time-based Media
1.2.1 Audio-only and Video-only (Prerecorded): For prerecorded audio-only and prerecorded video-only media, the following are true, except when the audio or video is a media alternative for text and is clearly labeled as such: (Level A)
Related ACT Rules:
- Audio element content has text alternative proposed composite
- Video element auditory content has captions proposed secondary
- Video element visual-only content has accessible alternative proposed composite
1.2.2 Captions (Prerecorded): Captions are provided for all prerecorded audio content in synchronized media, except when the media is a media alternative for text and is clearly labeled as such. (Level A)
Related ACT Rules:
- Video element auditory content has accessible alternative proposed composite
1.2.3 Audio Description or Media Alternative (Prerecorded): An alternative for time-based media or audio description of the prerecorded video content is provided for synchronized media, except when the media is a media alternative for text and is clearly labeled as such. (Level A)
Related ACT Rules:
- Video element visual content has accessible alternative proposed composite
1.2.4 Captions (Live): Captions are provided for all live audio content in synchronized media. (Level AA)
No ACT Rules available for this criterion yet.
1.2.5 Audio Description (Prerecorded): Audio description is provided for all prerecorded video content in synchronized media. (Level AA)
Related ACT Rules:
- Video element visual content has accessible alternative proposed secondary composite
- Video element visual content has strict accessible alternative proposed composite
1.2.6 Sign Language (Prerecorded): Sign language interpretation is provided for all prerecorded audio content in synchronized media. (Level AAA)
No ACT Rules available for this criterion yet.
1.2.7 Extended Audio Description (Prerecorded): Where pauses in foreground audio are insufficient to allow audio descriptions to convey the sense of the video, extended audio description is provided for all prerecorded video content in synchronized media. (Level AAA)
No ACT Rules available for this criterion yet.
1.2.8 Media Alternative (Prerecorded): An alternative for time-based media is provided for all prerecorded synchronized media and for all prerecorded video-only media. (Level AAA)
Related ACT Rules:
- Audio and visuals of video element have transcript proposed
- Video element visual content has accessible alternative proposed secondary composite
1.2.9 Audio-only (Live): An alternative for time-based media that presents equivalent information for live audio-only content is provided. (Level AAA)
No ACT Rules available for this criterion yet.
Guideline 1.3 - Adaptable
1.3.1 Info and Relationships: Information, structure, and relationships conveyed through presentation can be programmatically determined or are available in text. (Level A)
Related ACT Rules:
- ARIA attribute is defined in WAI-ARIA secondary
- ARIA state or property has valid value secondary
- Form field has non-empty accessible name secondary
- Headers attribute specified on a cell refers to cells in the same table element
- Role attribute has valid value secondary
- ARIA required context role proposed
- ARIA required ID references exist proposed secondary
- ARIA required owned elements proposed
- ARIA state or property is permitted proposed secondary
- Element with role attribute has required states and properties proposed secondary
- Table header cell has assigned cells proposed
1.3.2 Meaningful Sequence: When the sequence in which content is presented affects its meaning, a correct reading sequence can be programmatically determined. (Level A)
No ACT Rules available for this criterion yet.
1.3.3 Sensory Characteristics: Instructions provided for understanding and operating content do not rely solely on sensory characteristics of components such as shape, color, size, visual location, orientation, or sound. (Level A)
Related ACT Rules:
1.3.4 Orientation: Content does not restrict its view and operation to a single display orientation, such as portrait or landscape, unless a specific display orientation is essential. (Level AA)
Related ACT Rules:
1.3.5 Identify Input Purpose: The purpose of each input field collecting information about the user can be programmatically determined when: (Level AA)
Related ACT Rules:
1.3.6 Identify Purpose: In content implemented using markup languages, the purpose of user interface components, icons, and regions can be programmatically determined. (Level AAA)
No ACT Rules available for this criterion yet.
Guideline 1.4 - Distinguishable
1.4.1 Use of Color: Color is not used as the only visual means of conveying information, indicating an action, prompting a response, or distinguishing a visual element. (Level A)
No ACT Rules available for this criterion yet.
1.4.2 Audio Control: If any audio on a web page plays automatically for more than 3 seconds, either a mechanism is available to pause or stop the audio, or a mechanism is available to control audio volume independently from the overall system volume level. (Level A)
Related ACT Rules:
- Audio or video element avoids automatically playing audio proposed composite
1.4.3 Contrast (Minimum): The visual presentation of text and images of text has a contrast ratio of at least 4.5:1, except for the following: (Level AA)
Related ACT Rules:
1.4.4 Resize Text: Except for captions and images of text, text can be resized without assistive technology up to 200 percent without loss of content or functionality. (Level AA)
Related ACT Rules:
1.4.5 Images of Text: If the technologies being used can achieve the visual presentation, text is used to convey information rather than images of text except for the following: (Level AA)
Related ACT Rules:
1.4.6 Contrast (Enhanced): The visual presentation of text and images of text has a contrast ratio of at least 7:1, except for the following: (Level AAA)
Related ACT Rules:
1.4.7 Low or No Background Audio: For prerecorded audio-only content that (1) contains primarily speech in the foreground, (2) is not an audio CAPTCHA or audio logo, and (3) is not vocalization intended to be primarily musical expression such as singing or rapping, at least one of the following is true: (Level AAA)
No ACT Rules available for this criterion yet.
1.4.8 Visual Presentation: For the visual presentation of blocks of text, a mechanism is available to achieve the following: (Level AAA)
No ACT Rules available for this criterion yet.
1.4.9 Images of Text (No Exception): Images of text are only used for pure decoration or where a particular presentation of text is essential to the information being conveyed. (Level AAA)
Related ACT Rules:
1.4.10 Reflow: Content can be presented without loss of information or functionality, and without requiring scrolling in two dimensions for: (Level AA)
Related ACT Rules:
- Meta viewport allows for zoom secondary
1.4.11 Non-text Contrast: The visual presentation of the following have a contrast ratio of at least 3:1 against adjacent color(s): (Level AA)
No ACT Rules available for this criterion yet.
1.4.12 Text Spacing: In content implemented using markup languages that support the following text style properties, no loss of content or functionality occurs by setting all of the following and by changing no other style property: (Level AA)
Related ACT Rules:
1.4.13 Content on Hover or Focus: Where receiving and then removing pointer hover or keyboard focus triggers additional content to become visible and then hidden, the following are true: (Level AA)
No ACT Rules available for this criterion yet.
Guideline 2.1 - Keyboard Accessible
2.1.1 Keyboard: All functionality of the content is operable through a keyboard interface without requiring specific timings for individual keystrokes, except where the underlying function requires input that depends on the path of the user's movement and not just the endpoints. (Level A)
Related ACT Rules:
2.1.2 No Keyboard Trap: If keyboard focus can be moved to a component of the page using a keyboard interface, then focus can be moved away from that component using only a keyboard interface, and, if it requires more than unmodified arrow or tab keys or other standard exit methods, the user is advised of the method for moving focus away. (Level A)
Related ACT Rules:
- Focusable element has no keyboard trap proposed composite
2.1.3 Keyboard (No Exception): All functionality of the content is operable through a keyboard interface without requiring specific timings for individual keystrokes. (Level AAA)
Related ACT Rules:
2.1.4 Character Key Shortcuts: If a keyboard shortcut is implemented in content using only letter (including upper- and lower-case letters), punctuation, number, or symbol characters, then at least one of the following is true: (Level A)
Related ACT Rules:
Guideline 2.2 - Enough Time
2.2.1 Timing Adjustable: For each time limit that is set by the content, at least one of the following is true: (Level A)
Related ACT Rules:
2.2.2 Pause, Stop, Hide: For moving, blinking, scrolling, or auto-updating information, all of the following are true: (Level A)
Related ACT Rules:
2.2.3 No Timing: Timing is not an essential part of the event or activity presented by the content, except for non-interactive synchronized media and real-time events. (Level AAA)
No ACT Rules available for this criterion yet.
2.2.4 Interruptions: Interruptions can be postponed or suppressed by the user, except interruptions involving an emergency. (Level AAA)
Related ACT Rules:
2.2.5 Re-authenticating: When an authenticated session expires, the user can continue the activity without loss of data after re-authenticating. (Level AAA)
No ACT Rules available for this criterion yet.
2.2.6 Timeouts: Users are warned of the duration of any user inactivity that could cause data loss, unless the data is preserved for more than 20 hours when the user does not take any actions. (Level AAA)
No ACT Rules available for this criterion yet.
Guideline 2.3 - Seizures and Physical Reactions
2.3.1 Three Flashes or Below Threshold: Web pages do not contain anything that flashes more than three times in any one second period, or the flash is below the general flash and red flash thresholds. (Level A)
No ACT Rules available for this criterion yet.
2.3.2 Three Flashes: Web pages do not contain anything that flashes more than three times in any one second period. (Level AAA)
No ACT Rules available for this criterion yet.
2.3.3 Animation from Interactions: Motion animation triggered by interaction can be disabled, unless the animation is essential to the functionality or the information being conveyed. (Level AAA)
No ACT Rules available for this criterion yet.
Guideline 2.4 - Navigable
2.4.1 Bypass Blocks: A mechanism is available to bypass blocks of content that are repeated on multiple web pages. (Level A)
Related ACT Rules:
- Bypass Blocks of Repeated Content proposed composite
2.4.2 Page Titled: Web pages have titles that describe topic or purpose. (Level A)
Related ACT Rules:
2.4.3 Focus Order: If a web page can be navigated sequentially and the navigation sequences affect meaning or operation, focusable components receive focus in an order that preserves meaning and operability. (Level A)
No ACT Rules available for this criterion yet.
2.4.4 Link Purpose (In Context): The purpose of each link can be determined from the link text alone or from the link text together with its programmatically determined link context, except where the purpose of the link would be ambiguous to users in general. (Level A)
Related ACT Rules:
2.4.5 Multiple Ways: More than one way is available to locate a web page within a set of web pages except where the web page is the result of, or a step in, a process. (Level AA)
No ACT Rules available for this criterion yet.
2.4.6 Headings and Labels: Headings and labels describe topic or purpose. (Level AA)
Related ACT Rules:
- Form field label is descriptive proposed
- Heading is descriptive proposed
2.4.7 Focus Visible: Any keyboard operable user interface has a mode of operation where the keyboard focus indicator is visible. (Level AA)
Related ACT Rules:
2.4.8 Location: Information about the user's location within a set of web pages is available. (Level AAA)
No ACT Rules available for this criterion yet.
2.4.9 Link Purpose (Link Only): A mechanism is available to allow the purpose of each link to be identified from link text alone, except where the purpose of the link would be ambiguous to users in general. (Level AAA)
Related ACT Rules:
- Link has non-empty accessible name
- Link in context is descriptive proposed secondary
- Link is descriptive proposed
- Links with identical accessible names and same context serve equivalent purpose proposed secondary
- Links with identical accessible names have equivalent purpose proposed
2.4.10 Section Headings: Section headings are used to organize the content. (Level AAA)
No ACT Rules available for this criterion yet.
2.4.11 Focus Not Obscured (Minimum): When a user interface component receives keyboard focus, the component is not entirely hidden due to author-created content. (Level AA)
No ACT Rules available for this criterion yet.
2.4.12 Focus Not Obscured (Enhanced): When a user interface component receives keyboard focus, no part of the component is hidden by author-created content. (Level AAA)
No ACT Rules available for this criterion yet.
2.4.13 Focus Appearance: When the keyboard focus indicator is visible, an area of the focus indicator meets all the following: (Level AAA)
No ACT Rules available for this criterion yet.
Guideline 2.5 - Input Modalities
2.5.1 Pointer Gestures: All functionality that uses multipoint or path-based gestures for operation can be operated with a single pointer without a path-based gesture, unless a multipoint or path-based gesture is essential. (Level A)
No ACT Rules available for this criterion yet.
2.5.2 Pointer Cancellation: For functionality that can be operated using a single pointer, at least one of the following is true: (Level A)
No ACT Rules available for this criterion yet.
2.5.3 Label in Name: For user interface components with labels that include text or images of text, the name contains the text that is presented visually. (Level A)
Related ACT Rules:
- Form field has non-empty accessible name secondary
- Visible label is part of accessible name proposed
2.5.4 Motion Actuation: Functionality that can be operated by device motion or user motion can also be operated by user interface components and responding to the motion can be disabled to prevent accidental actuation, except when: (Level A)
Related ACT Rules:
2.5.5 Target Size (Enhanced): The size of the target for pointer inputs is at least 44 by 44 CSS pixels except when: (Level AAA)
No ACT Rules available for this criterion yet.
2.5.6 Concurrent Input Mechanisms: Web content does not restrict use of input modalities available on a platform except where the restriction is essential, required to ensure the security of the content, or required to respect user settings. (Level AAA)
No ACT Rules available for this criterion yet.
2.5.7 Dragging Movements: All functionality that uses a dragging movement for operation can be achieved by a single pointer without dragging, unless dragging is essential or the functionality is determined by the user agent and not modified by the author. (Level AA)
No ACT Rules available for this criterion yet.
2.5.8 Target Size (Minimum): The size of the target for pointer inputs is at least 24 by 24 CSS pixels, except where: (Level AA)
No ACT Rules available for this criterion yet.
Guideline 3.1 - Readable
3.1.1 Language of Page: The default human language of each web page can be programmatically determined. (Level A)
Related ACT Rules:
3.1.2 Language of Parts: The human language of each passage or phrase in the content can be programmatically determined except for proper names, technical terms, words of indeterminate language, and words or phrases that have become part of the vernacular of the immediately surrounding text. (Level AA)
Related ACT Rules:
3.1.3 Unusual Words: A mechanism is available for identifying specific definitions of words or phrases used in an unusual or restricted way, including idioms and jargon. (Level AAA)
No ACT Rules available for this criterion yet.
3.1.4 Abbreviations: A mechanism for identifying the expanded form or meaning of abbreviations is available. (Level AAA)
No ACT Rules available for this criterion yet.
3.1.5 Reading Level: When text requires reading ability more advanced than the lower secondary education level after removal of proper names and titles, supplemental content, or a version that does not require reading ability more advanced than the lower secondary education level, is available. (Level AAA)
No ACT Rules available for this criterion yet.
3.1.6 Pronunciation: A mechanism is available for identifying specific pronunciation of words where meaning of the words, in context, is ambiguous without knowing the pronunciation. (Level AAA)
No ACT Rules available for this criterion yet.
Guideline 3.2 - Predictable
3.2.1 On Focus: When any user interface component receives focus, it does not initiate a change of context. (Level A)
No ACT Rules available for this criterion yet.
3.2.2 On Input: Changing the setting of any user interface component does not automatically cause a change of context unless the user has been advised of the behavior before using the component. (Level A)
No ACT Rules available for this criterion yet.
3.2.3 Consistent Navigation: Navigational mechanisms that are repeated on multiple web pages within a set of web pages occur in the same relative order each time they are repeated, unless a change is initiated by the user. (Level AA)
No ACT Rules available for this criterion yet.
3.2.4 Consistent Identification: Components that have the same functionality within a set of web pages are identified consistently. (Level AA)
No ACT Rules available for this criterion yet.
3.2.5 Change on Request: Changes of context are initiated only by user request or a mechanism is available to turn off such changes. (Level AAA)
Related ACT Rules:
3.2.6 Consistent Help: If a web page contains any of the following help mechanisms, and those mechanisms are repeated on multiple web pages within a set of web pages, they occur in the same order relative to other page content, unless a change is initiated by the user: (Level A)
No ACT Rules available for this criterion yet.
Guideline 3.3 - Input Assistance
3.3.1 Error Identification: If an input error is automatically detected, the item that is in error is identified and the error is described to the user in text. (Level A)
Related ACT Rules:
3.3.2 Labels or Instructions: Labels or instructions are provided when content requires user input. (Level A)
No ACT Rules available for this criterion yet.
3.3.3 Error Suggestion: If an input error is automatically detected and suggestions for correction are known, then the suggestions are provided to the user, unless it would jeopardize the security or purpose of the content. (Level AA)
No ACT Rules available for this criterion yet.
3.3.4 Error Prevention (Legal, Financial, Data): For web pages that cause legal commitments or financial transactions for the user to occur, that modify or delete user-controllable data in data storage systems, or that submit user test responses, at least one of the following is true: (Level AA)
No ACT Rules available for this criterion yet.
3.3.5 Help: Context-sensitive help is available. (Level AAA)
No ACT Rules available for this criterion yet.
3.3.6 Error Prevention (All): For web pages that require the user to submit information, at least one of the following is true: (Level AAA)
No ACT Rules available for this criterion yet.
3.3.7 Redundant Entry: Information previously entered by or provided to the user that is required to be entered again in the same process is either: (Level A)
No ACT Rules available for this criterion yet.
3.3.8 Accessible Authentication (Minimum): A cognitive function test (such as remembering a password or solving a puzzle) is not required for any step in an authentication process unless that step provides at least one of the following: (Level AA)
No ACT Rules available for this criterion yet.
3.3.9 Accessible Authentication (Enhanced): A cognitive function test (such as remembering a password or solving a puzzle) is not required for any step in an authentication process unless that step provides at least one of the following: (Level AAA)
No ACT Rules available for this criterion yet.
Guideline 4.1 - Compatible
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. (Level A)
Related ACT Rules:
- ARIA attribute is defined in WAI-ARIA secondary
- ARIA state or property has valid value secondary
- Button has non-empty accessible name
- Element with aria-hidden has no content in sequential focus navigation
- Element with presentational children has no focusable content
- Form field has non-empty accessible name
- Image button has non-empty accessible name
- Link has non-empty accessible name
- Menuitem has non-empty accessible name
- Role attribute has valid value secondary
- ARIA required ID references exist proposed secondary
- ARIA state or property is permitted proposed secondary
- Element with role attribute has required states and properties proposed secondary
- Iframe element has non-empty accessible name proposed
- Iframe elements with identical accessible names have equivalent purpose proposed
- Summary element has non-empty accessible name proposed
4.1.3 Status Messages: In content implemented using markup languages, status messages can be programmatically determined through role or properties such that they can be presented to the user by assistive technologies without receiving focus. (Level AA)
No ACT Rules available for this criterion yet.