This statement applies to content published on the domain. It does not apply to content on other subdomains (for example, subdomain)

This website is run by the UK Hydrographic Office. We want as many people as possible to be able to use this website. For example, that means you should be able to:

  • zoom in up to 300% without the text spilling off the screen
  • navigate most of the website using just a keyboard
  • navigate most of the website using speech recognition software
  • listen to most of the website using a screen reader (including the most recent versions of JAWS, NVDA and VoiceOver)
  • All images used in this site include descriptive ALT attributes, which describe the image for non-visual readers.
  • All links have title attributes, which describe the link in greater detail

We’ve also made the website text as simple as possible to understand.
AbilityNet has advice on making your device easier to use if you have a disability. 

How accessible is this website?


We know some parts of this website are not fully accessible:

  • you cannot modify the line height or spacing of text
  • most older PDF documents are not fully accessible to screen reader software

Feedback and contact information


If you need information on this website in a different format; like accessible PDF, large print, easy read, audio recording or braille:

We’ll consider your request and reply to you within 5 working days. 

Reporting accessibility problems with this website


We’re always looking to improve the accessibility of this website. If you find any problems not listed on this page or think we’re not meeting accessibility requirements, contact: to let us know your concerns.

Enforcement procedure


The Equality and Human Rights Commission (EHRC) is responsible for enforcing the Public Sector Bodies (Websites and Mobile Applications) (No. 2) Accessibility Regulations 2018 (the ‘accessibility regulations’). If you’re not happy with how we respond to your complaint, contact the Equality Advisory and Support Service (EASS).

Technical information about this website’s accessibility


The UK Hydrographic Office is committed to making this website accessible, in accordance with the Public Sector Bodies (Websites and Mobile Applications) (No. 2) Accessibility Regulations 2018.

Compliance status


This website is partially compliant with the Web Content Accessibility Guidelines version 2.1 AA standard.

Non-accessible content


The content listed below is non-accessible for the following reasons.

Non-compliance with the accessibility regulations

  • Some of our PDFs and Word documents do not meet accessibility standards. For example, they may not be structured in a way that makes them accessible to a screen reader. This fails WCAG 2.1 success criterion 1.3.1 (Info and Relationships). We plan to provide HTML versions of existing PDFs linked from frequently accessed and important pages. We plan to review PDF use across all pages and, where possible, provide HTML alternatives by the end of 2022.

How we tested this website


Accessibility Testing Approach at UKHO documents show how we plan to improve accessibility on this website and all our products and services.

We use the Web Content Accessibility Guidelines V2.1 level A and level AA to test how accessible is.

In May 2023, the Digital Accessibility Centre (DAC) conducted an audit of a representative sample of pages on, from which common accessibility issues across the website were identified.

What we’re doing to improve accessibility


Following the audit conducted by the DAC in March 2022, we are urgently fixing content which fails to meet the Web Content Accessibility Guidelines version 2.1 AA standard.

Preparation of this accessibility statement


Maintaining an accessible site is an ongoing process and we are continually working to offer a user-friendly experience. However, if you have any problems using this website please contact us by email.

This statement was prepared on 2 December 2021. It was last reviewed on 13 September 2023. This website was last tested on 31 May 2023. The test was carried out by Digital Accessibility Centre.

Accessibility testing was undertaken on this website and included a representative number of areas on our site which saw the highest traffic.