OCEI - Office of the Commissioner for Environmental Information (OCEI)

First time visit: View without clicking anything

OCEI - Annual reviews

OCEI - Accessibility

OCEI - Mr. F & Coillte

OCEI - Court judgments

OCEI - Mr. X and Coillte

OCEI - Cybersecurity Incident: Your Questions

OCEI - Contact

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

February 2026

January 2026

Commissioner for Environmental Information

	Title / URL	Issues
	OCEI - Office of the Commissioner for Environmental Information (OCEI)www.ocei.ie/en/	6
	First time visit: View without clicking anythingocei.ie/en/	6
	OCEI - Annual reviewswww.ocei.ie/en/organisation-information/4821e-annual-reports/?referrer=https://ocei.ie/en/publication/e5c02-annual-reviews/	6
	OCEI - Accessibilityocei.ie/en/service/fdf35-accessibility/?referrer=https://ocei.ie/en/collection/3dab3-accessibility/	6
	OCEI - Mr. F & Coillteocei.ie/en/ombudsman-decision/93e87-mr-f-coillte/	6
	OCEI - Mr. F & Coillteocei.ie/en/ombudsman-decision/eb4bd-mr-f-coillte/	6
	OCEI - Court judgmentsocei.ie/en/collection/140eb-court-judgments/	6
	OCEI - Mr. X and Coillteocei.ie/en/ombudsman-decision/64054-mr-x-and-coillte/	6
	OCEI - Cybersecurity Incident: Your Questionswww.ocei.ie/en/publication/7f3ba-cybersecurity-incident-your-questions/	6
	OCEI - Contactocei.ie/en/collection/7f114-contact-the-ocei/	6

Fix duplicate IDs

Commissioner for Environmental Information

Where this issue has occurred