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We use small files called ‘cookies’ on imb.org.uk. Some are essential to make the site work, some help us to understand how we can improve your experience, and some are set by third parties. You can choose to turn off the non-essential cookies. Which cookies are you happy for us to use?

Google analytics
Name	Purpose	Expires
_ga	These help us count how many people visit on https://imb.org.uk/ by tracking if you’ve visited before	2 years
_gid	These help us count how many people visit on https://imb.org.uk/ by tracking if you’ve visited before	24 hours
_gat	These help us to manage how we collect analytics when we have lots of visitors on the site at one time	10 minutes

Google Analytics 4
Name	Purpose	Expires
_ga	Used to distinguish users.	2 years
_ga_S401P4BC3G	Used to persist session state.	2 years

Google Conversion Linker
Name	Purpose	Expires
_gcl_au	Used by Google DoubleClick segment users into audience types and attribute campaign performance to your actions on this website, including conversions.	90 days
_gcl_dc	To store ad click information (only if remarketing cookies are enabled), generate unique IDs for visitors to remember preferences and track and gather statistics and conversion rates through the website.
_gcl_aw	To store ad click information (only if remarketing cookies are enabled), generate unique IDs for visitors to remember preferences and track and gather statistics and conversion rates through the website.

Meta and LinkedIn marketing tags
Name	Purpose	Expires
li_fat_id	Member indirect identifier for Members for conversion tracking, retargeting, analytics	30 days

Video Streaming
Name	Purpose	Expires
YouTube	YouTube videos play in privacy-enhanced mode. This mode may set third-party cookies on your computer when you click on the YouTube video player. These cookies will not be personally identifiable.	Read the YouTube policy
Vimeo	Vimeo videos set third-party cookies to enable the video to play and collect analytics data. These cookies do not track individuals.	Read the Vimeo policy

Social Media
Name	Purpose	Expires
Twitter	Twitter widgets may add cookies to help analyse usage and remember your session if you are also logged in to your Twitter account.	Read the Twitter policy

All users
Name	Purpose	Expires
wordpress_test_cookie	This is used to test whether the browser accepts cookies	When you close your browser
PHPSESSID	This is used to link your device to the information sent to the server from your browser. It is typically used to avoid you having to retype information when moving from one page to another.	When you close your browser
ccfw-banner-hidden	Lets us know you have chosen which cookies are used so we can stop the cookie banner appearing when you return to the site.	1 year
ccfw-gtm-allowed	Lets us know you have accepted certain cookies so we can stop them loading when you return to the site.	1 year
ccfw-time	This is used to store the cookie expiry dates so we know when to ask you again for consent.	1 year
info_banner_dismissed	This remembers if an information banner has been dismissed and prevents it from being displayed again.	When you close your browser

Logged in users
Name	Purpose	Expires
wordpress_[hash]	This authenticates you when you log in to the admin area	When you close your browser
wordpress_logged_in	This shows the site that you’re logged in and who you are so you can access the functions you need	When you close your browser
wordpress_sec	If you are logged in as a site admin, this stores your authentication details.	When you close your browser
wp-settings-{time}-[UID]	The number on the end [UID] is your individual user ID from the users database.	1 year

Annual reports & ministerial responses

Annual reports and ministerial responses published before 2020 can be accessed via the National Archives.

Search for a report

1050 documents

London Heathrow and City Airports annual report 2021-22

Published:

29 June 2022

Annual Report of the Independent Monitoring Board for the Short-Term Holding Facilities at London Heathrow and City Airports for reporting year 1 February 2021 – 31 January 2022.