School of Health Sciences - University of New Haven

Henry C. Lee College of Criminal Justice and Forensic Sciences - University of New Haven

Tagliatela College of Engineering - University of New Haven

Pompea College of Business - University of New Haven

Academics - University of New Haven

College of Arts and Sciences - University of New Haven

Parents and Families - University of New Haven

Support the University of New Haven - Office of Advancement - University of New Haven

Employment at the University of New Haven - University of New Haven

Military & Veteran Affairs - University of New Haven

All `id` attributes on a page must be unique, or accessible technologies used by the page 
can stop working.

## Example

The duplicate `id` here makes it unclear which label belongs to which input field:

```html
<label for="name">Your name</label>
<input id="name">

<label for="name">Company name</label>
<input id="name">
```

As a result, accessible technologies like screen readers can fail to read out the 
correct text, or may read out no text at all.

Similar issues can occur when using `aria-labelledby` and `aria-describedby`.

## How to fix

Ensure all `id` attributes on a page are unique. 

## More information

See [Technique H93](https://www.w3.org/TR/2016/NOTE-WCAG20-TECHS-20161007/H93) 
for more information.

duplicate-id

April 2025

March 2025

University of New Haven

Title / URL	Issues
School of Health Sciences - University of New Havenwww.newhaven.edu/health-sciences/index.php	11
Henry C. Lee College of Criminal Justice and Forensic Sciences - University of New Havenwww.newhaven.edu/lee-college/index.php	8
Tagliatela College of Engineering - University of New Havenwww.newhaven.edu/engineering/index.php	7
Pompea College of Business - University of New Havenwww.newhaven.edu/business/index.php	6
Academics - University of New Havenwww.newhaven.edu/academics/index.php	5
College of Arts and Sciences - University of New Havenwww.newhaven.edu/arts-sciences/index.php	4
Parents and Families - University of New Havenwww.newhaven.edu/families/index.php	4
Support the University of New Haven - Office of Advancement - University of New Havenwww.newhaven.edu/give/index.php	4
Employment at the University of New Haven - University of New Havenwww.newhaven.edu/about/employment/index.php	4
Military & Veteran Affairs - University of New Havenwww.newhaven.edu/veterans/index.php	4

Fix duplicate IDs

University of New Haven

Where this issue has occurred