EPUB Accessibility Conformance Report

Pass

Additional Info:

All non-text content that is presented to the user has a text alternative that serves the equivalent purpose.

Pass

Additional Info:

An alternative for time-based media is provided (if applicable) which presents equivalent information for prerecorded audio or video only content

Pass

Additional Info:

Captions are provided for all prerecorded audio content in synchronized media wherever videos are available within these publications, except when the media serves as a text alternative and is clearly labeled as such.

Pass

Additional Info:

An alternative for time-based media, or audio description of prerecorded video content, is provided for synchronized media wherever videos are available within these publications, except when the media serves as a text alternative and is clearly labeled as such.

Pass

Additional Info:

Information, structure, and relationships conveyed through presentation can be programmatically determined or are available in text.

Pass

Additional Info:

When the sequence in which content is presented affects its meaning, a correct reading sequence can be programmatically determined.

Pass

Additional Info:

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.

Pass

Additional Info:

Color is generally not used as the sole visual means of conveying information, indicating an action, prompting a response, or distinguishing a visual element.

Please note: There may be occasional images in these titles in which color is the only means of conveying information or distinguishing a visual element. However, the surrounding text or the text alternative will include the information that is conveyed by color differences in the image.

Pass

Additional Info:

The visual presentation of text and images of text has a contrast ratio of at least 4.5:1, except for the following:

Please note: Some of the images in these titles may contain incidental text that does not meet required contrast thresholds when it is part of a picture that contains significant other visual content, or when the text must be portrayed authentically, such as in screenshots. However, the surrounding text or the text alternative will include the textual information.

Pass

Additional Info:

Except for captions and images of text, text can be resized without assistive technology up to 200 percent without loss of content or functionality.

Pass

Additional Info:

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:

Customizable: The image of text can be visually customized to the user's requirements;

Essential: A particular presentation of text is essential to the information being conveyed.

Pass

Additional Info:

Content can be presented without loss of information or functionality, and without requiring scrolling in two dimensions when pages are zoomed to 400%.

Pass

Additional Info:

There are very few instances where visual presentation in some images lacks a contrast ratio of at least 3:1 against adjacent color(s).

Please note: Some of the images in these titles may not meet required contrast thresholds when altering them would compromise instructional intent, authenticity, or technical accuracy. For example, photographs and screenshots are preserved in original form to maintain accuracy, and diagrams of medical information may not use colors with sufficient contrast (ex: oxygenated vs. deoxygenated blood being red and blue, respectively).

Compensatory measures, such as providing detailed descriptions and conveying critical instructional content in text, are used to ensure equivalent access.

Pass

Additional Info:

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:

Line height (line spacing) to at least 1.5 times the font size;

Spacing following paragraphs to at least 2 times the font size;

Letter spacing (tracking) to at least 0.12 times the font size;

Word spacing to at least 0.16 times the font size.

Pass

Additional Info:

Where receiving and then removing pointer hover or keyboard focus triggers additional content to become visible and then hidden, the following are true:

Dismissable: A mechanism is available to dismiss the additional content without moving pointer hover or keyboard focus, unless the additional content communicates an input error or does not obscure or replace other content;

Hoverable: If pointer hover can trigger the additional content, then the pointer can be moved over the additional content without the additional content disappearing;

Persistent: The additional content remains visible until the hover or focus trigger is removed, the user dismisses it, or its information is no longer valid.

Pass

Additional Info:

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.

Pass

Additional Info:

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.

Pass

Additional Info:

Pages have titles that describe topic or purpose.

Pass

Additional Info:

If ePub pages can be navigated sequentially and the navigation sequences affect meaning or operation, focusable components receive focus in an order that preserves meaning and operability.

Pass

Additional Info:

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.

Pass

Additional Info:

More than one way is available to locate a page within a set of pages, except where the Page is the result of, or a step in, a process.

Pass

Additional Info:

Headings and labels describe topic or purpose.

Pass

Additional Info:

Any keyboard operable user interface has a mode of operation where the keyboard focus indicator is visible.

Pass

Additional Info:

When a user interface component receives keyboard focus, the component should not be entirely hidden due to author-created content.

Pass

Additional Info:

For user interface components with labels that include text or images of text, the name contains the text that is presented visually.

Pass

Additional Info:

Ensure targets can be easily activated without accidentally activating an adjacent target. The size of the target for pointer inputs is at least 24 by 24 CSS pixels, except where:

Spacing: Undersized targets (those less than 24 by 24 CSS pixels) are positioned so that if a 24 CSS pixel diameter circle is centered on the bounding box of each, the circles do not intersect another target or the circle for another undersized target.

Equivalent: The function can be achieved through a different control on the same page that meets this criteria;

Inline: The target is in a sentence, or its size is otherwise constrained by the line-height of non-target text;

User agent control: The size of the target is determined by the user agent and is not modified by the author.

Essential: A particular presentation of the target is essential or is legally required for the information being conveyed.

Pass

Additional Info:

The default human language of each page can be programmatically determined.

Pass

Additional Info:

In titles teaching a language other than English, 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 English vernacular.

In all other titles, there may be rare cases of a non-English phrase that does not fall under the exceptions listed previously for which the human language is not appropriately defined.

Pass

Additional Info:

When any user interface component receives focus, it does not initiate a change of context.

Pass

Additional Info:

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.

Pass

Additional Info:

Navigational mechanisms that are repeated on multiple pages within a set of pages occur in the same relative order each time they are repeated, unless a change is initiated by the user.

Pass

Additional Info:

Components that have the same functionality within a set of pages are identified consistently.

Pass

Additional Info:

If a page contains any of the help mechanisms, and those mechanisms are repeated on multiple pages within a set of pages, they occur in the same order relative to other page content, unless a change is initiated by the user.

Pass

Additional Info:

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.

Pass

Additional Info:

Labels or instructions are provided when content requires user input.

Pass

Additional Info:

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.

Pass

Additional Info:

Users are not required to enter the same information multiple times in a single process. Mechanisms are in place to either auto-populate previously entered data or provide ways to avoid redundant entry.

Pass

Additional Info:

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.

Pass

Additional Info:

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.

Pass

Pass

Pass

Pass