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<p class="MsoNormal"><span style="font-size:12.0pt">Zach,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">I would just stick with WCAG, and specify version 2, levels A and AA (or WCAG2 AA for short.)  They have not yet issued specific regulations for IT accessibility under the ADA, and Section 508 was just updated
 to use WCAG2 AA.  You could suggest they refer to the W3C’s “Mobile Accessibility: How WCAG 2.0 and Other W3C/WAI Guidelines Apply to Mobile” draft
</span>Working Group Note for helpful guidance (<span style="font-size:12.0pt">https://www.w3.org/TR/mobile-accessibility-mapping/)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">If they are building “native” apps rather than a web-based one, they should follow platform developers’ guidance:<o:p></o:p></span></p>
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<![if !supportLists]><span style="font-size:12.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">        
</span></span></span><![endif]><span style="font-size:12.0pt">Apple (https://developer.apple.com/library/content/documentation/Accessibility/Conceptual/AccessibilityMacOSX/)<o:p></o:p></span></p>
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<![if !supportLists]><span style="font-size:12.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">        
</span></span></span><![endif]><span style="font-size:12.0pt">Android (https://developer.android.com/guide/topics/ui/accessibility/index.html)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">sb<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Lucida Bright","serif";color:#1F497D">Sarah E. Bourne<br>
Director of IT Accessibility, MassIT <br>
Commonwealth of Massachusetts<br>
1 Ashburton Pl. rm 811 Boston MA 02108<br>
617-626-4502 <br>
<a href="mailto:sarah.bourne@mass.gov"><span style="color:#1F497D">sarah.bourne@mass.gov</span></a>
<br>
<a href="http://www.mass.gov/MassIT"><span style="color:#1F497D">http://www.mass.gov/MassIT</span></a><o:p></o:p></span></p>
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