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Cookies Policy

What is a cookie?

Cookies are text files containing small amounts of information which are downloaded to your device when you visit a website. Cookies are then sent back to the originating website on each subsequent visit, or to another website that recognises that cookie. Cookies are useful because they allow a website to recognise a user’s device. Cookies do lots of different jobs, like letting you navigate between pages efficiently, remembering your preferences, and generally improve the user experience. They can also help to ensure that adverts you see online are more relevant to you and your interests. The cookies used on this website have been categorised based on the categories found in the ICC UK Cookie guide. A list of all the cookies used on this website by category is set out below:

Category 1: strictly necessary cookies

These cookies are essential in order to enable you to move around the website and use its features, such as accessing secure areas of the website. Without these cookies services you have asked for, like shopping baskets or e-billing, cannot be provided.

Category 2: performance cookies

These cookies collect information about how visitors use a website, for instance which pages visitors go to most often, and if they get error messages from web pages. These cookies don’t collect information that identifies a visitor. All information these cookies collect is aggregated and therefore anonymous. It is only used to improve how a website works.

The type, purpose and intrusiveness of cookies we use:

NOS website (

CookieNamePurposeMore information
Microsoft SharePoint WSS_KeepSessionAuthenticatedAs anonymous authentication is enabled for this web application zone that use windows integrated authentication, SharePoint use WSS_Keepsessionauthenticated cookie to prevent reverting to anonymous. 

Expires when session finishes


Microsoft SharePointWSS_FullScreenModeMicrosoft SharePoint cookie for internal use of the application to enable communication, identify the user session and/or exchange information with the content manager.

Expires when session finishes


Google Analytics



These cookies are used to collect information about how visitors use our site. We use the information to compile reports and to help us improve the site.__utmc is a session cookie, deleted at the end of your session. All others are persistent cookies expiring 2 years, 30 minutes, 2 years, 6 months  and 10 minutes respectively.

More information can be found on the Google Analytics website.
EU Cookies BannerEUThis persistent cookie is saved when the Hide button on the EU Cookies Banner is clicked.

Expires after 10 years


Popup SurveyPopupSurveyThis persistent cookie is saved on completion of the Popup survey Expires after 6 months.