Guideline 1 PERCEIVABLE    
Make Content Perceivable

Group One Checkpoints – Minimum

• 1-M1  [1.1] All non-text content that can be expressed in words has a text equivalent of the function or information that the non-text content was intended to convey.
• 1-M2   [1.2]  Synchronized media equivalents are provided for time-dependent presentations.
• 1-M3   [1.3]  All content and structure are [separate or separable from] available independently of presentation.
• 1-M4   [1.6]   All characters and words in the content can be unambiguously decoded.

Group Two Checkpoints

• 1-E1    [1.4]    Structure has been made perceivable to more people through presentation(s), positioning, and labels.
• 1-E2    [1.5]   Foreground content is easily differentiable from background for both auditory and visual presentations [required].

Guideline 2 OPERABLE        
Ensure that Interface Elements in the Content are Operable by Any User

Group One Checkpoints – Minimum

• 2-M1   [2.1]   Ensure that all of the functionality is operable at a minimum through a keyboard or a keyboard interface.
• 2-M2   [2.2] Allow users to control any time limits on their reading, interaction, or responses unless control is not possible due to nature of real time events or competition.

Group Two Checkpoints

• 2-E1   [2.3]    User can prevent screen flicker.
• 2-E2   [3.1 and 3.2]  Structure and/or alternate navigation mechanisms have been added to facilitate orientation and movement in content.
• 2-E3  [3.5]   Methods are provided to minimize error and provide graceful recovery.

Guideline Three: UNDERSTANDABLE    
Make it as easy as possible to understand the content and controls

Group One Checkpoints

• 3-M1  [1.6 partial]   Language of content can be unambiguously determined.
• 3-M2   [4.3]  The meaning of words, abbreviations, and acronyms can be unambiguously determined.

Group Two Checkpoints

• 3-E1   [4.1 and 4.2]  Content is written to be no more complex than is necessary and/or supplement with simpler forms of the content.  
• 3-E2   [3.3 and 3.4]  Layout and behavior of content is consistent but not identical.

Guideline 4 ROBUST 
Use web technologies that maximize the ability of the content to work with current and future accessibility  technologies and user agents.

Group One Checkpoints

• 4-M1   [5.1]  Technologies are used according to specification
• 4-M2   [5.2]   Ensure that technologies relied upon by the content are declared and widely available.
• 4-M3   [5.3 and 5.4]   Technologies used for presentation and user interface support accessibility or alternate versions of the content are provided which do support accessibility.

Note: Items in square brackets indicate success criteria numbering in the April 29 Draft.