The ONIX code can be used to describe accessibility metadata in ONIX 3, ONIX 2.1, or Dynamic Excel.

The alternative code can be used to import accessibility metadata using the AccessibilityFeature tag in Dynamic Excel.

ONIX  code (list 196)

Alternative code

Description

00accessibility_summary

Accessibility summary.

Additional field: Short description of available accessibility options.

01

lia_compliance_schemeLIA Compliance Scheme.
02epub_accessibility_specification_1_0_a

EPUB Accessibility Specification 1.0 A.

Additional field: URL pointing to a compliance report or certification from an independent third party.

03epub_accessibility_specification_1_0_aa

EPUB Accessibility Specification 1.0 AA.

Additional field: URL pointing to a compliance report or certification from an independent third party.

05pdf_uaPDF/UA.
09inaccessibleInaccessible.
10no_readingNo reading system accessibility options disabled, except those described in the protection options.
11toc_navigationTable of contents navigation.
12index_navigationIndex navigation.
13reading_orderLogical reading order including visually separated text and non-textual elements, excluding purely decorative elements.
14short_alternative_descriptionsShort alternative descriptions.
15full_alternative_descriptionsFull alternative descriptions.
16non_graphical_dataVisualised data also available as non-graphical data.
17accessible_math_contentAccessible math content.
18accessible_chem_contentAccessible chem content.
19print_equivalent_page_numberingPrint-equivalent page numbering.
20synchronized_pre_recorded_audioSynchronised pre-recorded audio.
21text_to_speech_hintingElements facilitating text-to-speech (PLS lexicons, SSML or CSS Speech synthesis hints).
22language_tagging_providedThe language of the text has been specified at the file level, but also at the word level for some words in a foreign language.
24dyslexia_readability

Dyslexia readability.

Additional field: Details (for example, the name of the particular font used).

25use_of_colorUse of distinctive elements other than color.
26use_of_contrastUse of contrast (minimum ratio of 4.5:1, or 3:1 for titles).
27use_of_audioAudio content with no background noise, or where the background noise is at least 20 decibels below the level of foreground speech.
28full_alternative_audio_descriptionsFull alternative audio descriptions.
29next_previous_navigation

All levels of heading and other structural elements of the content are correctly marked up and numbered to enable fast next/previous navigation.

93compliance_certification_by

Compliance certification by.

Additional field: URL to the website of the certification body.

94compliance_web_page_for_details

Compliance web page for detailed accessibility information.

Additional field: URL pointing to the web page.

95trusted_intermediary_web_page_for_details

Trusted intermediary’s web page for detailed accessibility information.

Additional field: URL pointing to the web page.

96publisher_web_page_for_details

Publisher’s web page for detailed accessibility information.

Additional field: URL pointing to the web page.

97compatibility_tested

Compatibility tested.

Additional field: link to a web page that describes the tests performed.

98trusted_intermediary_contact

Trusted Intermediary contact.

Additional field: email address.

99publisher_contact

Publisher contact for further accessibility information.

Additional field: email address.