Priorities of the Checkpoints

In the Web Content Accessibility Guidelines and in this curriculum, each checkpoint associated with a guideline is assigned a priority rating. The priority gives you a quick indication of the importance of following the particular checkpoint in your own page designs.

Priority 1

An author must follow this guideline, or one or more groups of users will find it impossible to access information in the document.
Implementing this guideline is a basic requirement for some groups to be able to use Web documents.

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Priority 2

This guideline should be followed by an author, or one or more groups of users might find it difficult to access information in the document.
Implementing this guideline will significantly improve access to Web documents.

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Priority 3

This guideline may be followed by an author to make it easier for one or more groups of users to access information in the document.
Implementing this guideline will improve access to Web documents.

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