The Bleep Test itself comes in two different forms (the 15 metre bleep test and the 20 metre bleep test).
As a general rule the 15 metre bleep test is considered easier because the shuttle distance is shorter and the speed progression is smoother.

Many organizations prefer to use the 15 metre bleep test to test applicants as it is less agreesive than the 20 metre test. Some organizations that use this test and the levels required can be found below:
UK Police Force - PC Applicants. Required Level: 5.4
UK Police Force - PCSO Applicants. Required Level: 5.4
UK Prison Service - PSO Applicants. Required Level: 5.2
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 wether 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.