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+[Back to 3 Understandable index](index.md)
+
+# 3.2.5 Change on Request
+
+- Level: AAA
+- Guideline: 3.2 Predictable
+- Principle: 3 Understandable
+
+## What it is
+
+Changes of context are initiated only by user request or a mechanism is available to turn off such changes.
+
+## How to test
+
+- Check: Changes of context are initiated only by user request or a mechanism is available to turn off such changes.
+- Use the sufficient techniques below as acceptable methods when applicable.
+- Confirm none of the common failures apply.
+
+## Sufficient techniques (W3C)
+
+- G76: Providing a mechanism to request an update of the content instead of updating automatically
+- SVR1: Implementing automatic redirects on the server side instead of on the client side
+- G110: Using an instant client-side redirect
+- H76: Using meta refresh to create an instant client-side redirect
+- H83: Using the target attribute to open a new window on user request and indicating this in link text
+- SCR24: Using progressive enhancement to open new windows on user request
+- SCR19: Using an onchange event on a select element without causing a change of context
+
+## Advisory techniques (W3C)
+
+- G200: Opening new windows and tabs from a link only when necessary
+
+## Common failures (W3C)
+
+- F60: Failure of Success Criterion 3.2.5 due to launching a new window when a user enters text into an input field
+- F61: Failure of Success Criterion 3.2.5 due to complete change of main content through an automatic update that the user cannot disable from within the content
+- F9: Failure of Success Criterion 3.2.5 due to changing the context when the user removes focus from a form element
+- F22: Failure of Success Criterion 3.2.5 due to opening windows that are not requested by the user
+- F52: Failure of Success Criterion 3.2.5 due to opening a new window as soon as a new page is loaded
+- F40: Failure due to using meta redirect with a time limit
+- F41: Failure of Success Criterion 2.2.1, 2.2.4, and 3.2.5 due to using meta refresh to reload the page
+
+## Resources
+
+- WCAG 2.2 SC: https://www.w3.org/TR/WCAG22/#change-on-request
+- Understanding: https://www.w3.org/WAI/WCAG22/Understanding/change-on-request.html
+- Quick reference: https://www.w3.org/WAI/WCAG22/quickref/?versions=2.2#change-on-request
+
+[Back to 3 Understandable index](index.md)