WCAG 1.0 (Level A)

Abbreviation	WCAG1-A
Long Name	Web Content Accessibility Guidelines (WCAG), Version 1.0, Level A
Published Date	2004-03-17
URL	http://www.w3.org/TR/WCAG10/#a
Status	Enabled
Open To Public	Yes

Checks

Priority 1

1.1 Provide a text equivalent for every non-text element.

Element	Error Type	Description	Check ID
a	Potential	Sound file must have a text transcript.	17
a	Likely	Links to multimedia require a text transcript.	20
applet	Potential	<code>applet</code> contains a text equivalent in the <code>alt</code> attribute of the <code>applet</code>.	23
area	Likely	<code>area</code> link to sound file must have text transcript.	66
area	Known	All <code>area</code> elements have an <code>alt</code> attribute.	64
area	Potential	Alt text for all <code>area</code> elements identifies the link destination.	65
frameset	Likely	Relationship between <code>frames</code> must be described.	34
img	Likely	Non-Decorative images must have Alt text.	4
img	Likely	Important images should not have spacer Alt text.	5
img	Potential	A long description is used for each <code>img</code> element that does not have Alt text conveying the same information as the image.	8
img	Potential	Alt text for all <code>img</code> elements contains all text in the image unless the image text is decorative or appears elsewhere in the document.	11
img	Known	All <code>img</code> elements have an <code>alt</code> attribute.	1
input	Known	All <code>input</code> elements with a <code>type</code> attribute value of "image" have an <code>alt</code> attribute.	58
input	Potential	Alt text for all <code>input</code> elements with a <code>type</code> attribute value of "image" identifies the purpose or function of the image.	59
object	Potential	<code>object</code> link to multimedia file must have text transcript.	77
object	Known	<code>object</code> must have a <code>title</code>.	78
object	Known	<code>object</code> must have a valid <code>title</code>.	79
object	Potential	All <code>objects</code> contain a text equivalent of the <code>object</code>.	80
script	Known	<code>script</code> must have a <code>noscript</code> section.	90

1.2 Provide redundant text links for each active region of a server-side image map.

Element	Error Type	Description	Check ID
img	Potential	All active areas in all server-side image maps have duplicate text links in the document.	132

1.3 Until user agents can automatically read aloud the text equivalent of a visual track, provide an auditory description of the important information of the visual track of a multimedia presentation.

None Found.

1.4 For any time-based multimedia presentation (e.g., a movie or animation), synchronize equivalent alternatives (e.g., captions or auditory descriptions of the visual track) with the presentation.

None Found.

2.1 Ensure that all information conveyed with color is also available without color, for example from context or markup.

Element	Error Type	Description	Check ID
applet	Potential	<code>applet</code> should not use color alone.	21
img	Potential	For all <code>img</code> elements, text does not refer to the image by color alone.	14
input	Potential	<code>input</code> should not use color alone.	55
object	Potential	<code>object</code> must not use color alone.	73
script	Potential	Color alone should not be used in the <code>script</code>.	86

4.1 Clearly identify changes in the natural language of a document's text and any text equivalents (e.g., captions).

Element	Error Type	Description	Check ID
body	Potential	Words and phrases not in the document's primary language are marked.	110

5.1 For data tables, identify row and column headers.

Element	Error Type	Description	Check ID
table	Potential	All data tables contain <code>th</code> elements.	136

6.1 Organize documents so they may be read without style sheets.

Element	Error Type	Description	Check ID
all elements	Likely	Content must be readable when stylesheets are not applied.	109
link	Potential	Document must be readable when stylesheets are not applied.	97
script	Likely	Content must be readable when stylesheets are not applied (SCRIPT).	94

6.2 Ensure that equivalents for dynamic content are updated when the dynamic content changes.

Element	Error Type	Description	Check ID
applet	Potential	Text equivalents for <code>applet</code> must be updated if <code>applet</code> changes.	24
object	Potential	Text equivalents for <code>object</code> should be updated if <code>object</code> changes - (codebase).	74
object	Potential	Text equivalents for <code>object</code> should be updated if <code>object</code> changes - (classid).	127

6.3 Ensure that pages are usable when scripts, applets, or other programmatic objects are turned off or not supported.

Element	Error Type	Description	Check ID
applet	Potential	<code>applet</code> contains a text equivalent in the body of the <code>applet</code>.	25
object	Potential	Content must be usable when <code>object</code> are disabled.	75
object	Potential	Content must be usable when <code>object</code>s are disabled.	128

7.1 Until user agents allow users to control flickering, avoid causing the screen to flicker.

Element	Error Type	Description	Check ID
applet	Potential	<code>applets</code> cause screen flicker.	22
img	Potential	All <code>img</code> elements have associated images that do not flicker.	10
object	Potential	All <code>objects</code> do not flicker.	30
script	Potential	<code>script</code> should not cause screen flicker.	87

8.1 Make programmatic elements such as scripts and applets directly accessible or compatible with assistive technologies.

Element	Error Type	Description	Check ID
applet	Potential	<code>applet</code> user interface must be accessible.	26
object	Potential	<code>object</code> user interface must be accessible - (codebase).	76
object	Potential	<code>object</code> user interface must be accessible - (classid).	129
script	Potential	User interface for <code>script</code> must be accessible.	89

9.1 Provide client-side image maps instead of server-side image maps except where the regions cannot be defined with an available geometric shape.

Element	Error Type	Description	Check ID
img	Known	All <code>img</code> elements with an <code>ismap</code> attribute have a valid <code>usemap</code> attribute.	12

11.4 If, after best efforts, you cannot create an accessible page, provide a link to an alternative page that uses W3C technologies, is accessible, has equivalent information (or functionality), and is updated as often as the inaccessible (original) page.

None Found.

12.1 Title each frame to facilitate frame identification and navigation.

Element	Error Type	Description	Check ID
frame	Known	All <code>frames</code> have a <code>title</code> attribute.	31
frame	Potential	All <code>frame</code> <code>titles</code> identify the purpose or function of the <code>frame</code>.	32

14.1 Use the clearest and simplest language appropriate for a site's content.

None Found.