The Bleep Test itself comes in two different forms (the 15 metre bleep test and the 20 metre bleep test).
The 20 metre bleep test is the harder and more agressive of the two and is favoured by the military and professional sports organizations.

Some organizations that use the 20 metre bleep test can be found below:
UK Fire Service - Required Level: 9.6
Royal Air Force - Required Level: 9.10
British Army - Required Level 10.2 (men) - 8.2 (women)
Royal Marine Commando - Required Level: 11.0
Western Australia Police - Required Level: 10.1 (male), 7.1 (female)
Australian Army - Required Level: 7.5
South Australia Police - Required Level: 9.04 (male), 6.10 (female)
Royal Australian Air Force - Required Level: 6.5
Royal Australian Navy - Required Level: 6.1
Metropolitan Fire Brigade - Required Level: 9.6
New South Wales Fire Brigades - Required Level: 9.6
New South Wales Police Force - Required Level: 5.1
Victoria Police - Required Level: 9.4 (male), 6.10 (female)
Ontario Provincial Police - Required Level: 6.5
Canadian Forces - Required Level: 6.0 Male, 4.0 Female
Royal New Zealand Navy - Required Level: 7.1
If you are seeking to use the bleep test as practice for any career based appilication, it is very important that you obtain the correct version. Practicing a wrong or unofficial copy of the bleep test could affect whether you pass or fail. TheBleepTest.com supply the official 15 and 20 metre bleep tests for just £4.95 (Mp3 Download) and £9.95 (Audio CD) couse.