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Accessibility - Ordnance Survey websites

Ordnance Survey is committed to ensuring that this site is accessible to all, regardless of platform or browser being used. However, should you experience difficulty in accessing any of the information on this site, please contact us.

Browser Support

This site should display correctly in all current major browsers. Designed and constructed using Cascading Style Sheets (CSS) for visual layout, this ensures that the contents of each page can still be accessed, even if a user's browser does not support CSS.

Screen Resolution

This site has been designed to make maximum use of screen resolutions measuring 1024 pixels by 768 pixels or greater. Resolutions below this, while remaining functional, may not display as expected.


As much information as possible is supplied within the web page itself.

Where this is not possible, the information is presented in a number of file formats including:

  • Adobe Portable Document Format (PDF);
  • Microsoft Word;
  • Microsoft Excel;
  • Rich Text Format (RTF); and
  • plain text.


Adobe® Acrobat® Reader is free software that lets you view and print PDF files.

Text sizing

This site is constructed using relative font sizes, which means that text can be scaled within the browser. Please refer to your browser's help page for information on how to achieve this.


All images used in this site include descriptive "alt" attributes. Where images are used for layout purposes, an empty "alt" attribute is used.


All forms and their fields are labelled and arranged into logical groups where possible.


Where the use of inline frames (Iframes) is employed, due to technical requirements, these are clearly labelled in order to make access to them as easy as possible.


This site uses scripting (JavaScript). However, the majority of the content remains fully accessible if your browser does not support scripting or you have disabled it.


Unless notified, all links, other than PDFs, open within the same browser window. Should you wish to open a link in a new browser window then hold down the "SHIFT" key while activating the link required. Ordnance Survey is not responsible for the content of any websites owned and operated by third parties to which we may link.

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