As well as a rank, every ATC cadet has his or her classification. Whereas rank is earned purely by merit, and leadership potential, classifications are gained by passing exams in RAF related subjects, set by either the Squadron, Wing or Corps. There are five different classifications: 2nd Class, 1st Class, Leading Cadet, Senior Cadet, and Staff Cadet.

Proficiency Training

The training subjects are selected from a variety of subjects in the ATC syllabus. 2nd Class cadets gain knowledge in subjects such as First Aid, History of the ATC, History of the RAF, airmanship, the rifle, expedition skills and basic Drill. 1st Class cadets learn more in depth subjects like Aircraft recognition, basic navigation, Principles of Flight and propulsion as well as Drill. Leading Cadets cover more advanced subjects like Meteorology and space travel. Senior Cadets will then learn more about the organization of their squadron and the ATC in general so that they are able to assist in the running of the unit.

2nd Class

A cadet is classified "2nd Class" as soon as they are enrolled, but before they have completed any examinations. A 2nd Class Cadet wears no badge of classification on his or her brassard. In order to become enrolled, a probationer simply has to convince the squadron of their commitment to the Corps.

1st Class

A cadet is certified 1st Class on passing examinations in first aid, the history of the RAF and ATC, weapons handling(.22 No.8 rifle), basic airmanship, initial expedition training, and communications. All of these examinations are set by Wing HQ. On passing their 1st Class, a cadet will receive a four pointed star to put on their brassard (a brassard is worn on the right arm of the shirt or jumper). Only after passing first class is a cadet eligible for Flying, or Shooting (.22 only).

Leading

On becoming 1st Class, a Cadet will become eligible to begin his or her Leading cadet training. During this training, Cadets will learn about Advanced Airmanship, Basic Navigation and Principles of Flight. Three times a year, Cadets will get the chance to sit an exam in all of these subjects, set by HQAC (Headquarters Air Cadets). After passing all three subjects, cadets will receive a badge with an embroidered four-bladed propeller. After qualifying to be Leading, a Cadet may start his or her Senior Cadet Training.

Senior Cadet

After gaining the Leading Cadet qualification, cadets are eligible to start training for the senior classification. This takes the form of training in two subjects chosen by the individual cadet from a list of available subjects.

Staff Cadet

The Staff Cadet examination is split into two parts, which can only be taken at 15½ and 16 years of age respectively. The first of these is very much like the Senior examination, except two different subjects must be chosen. The second part of the examination consists of an assessment of teaching ability, and a verbal examination on more detailed knowledge of the Corps. This examination is usually conducted by a member of Wing staff. On passing both parts of this examination, cadets wear a yellow lanyard on the left arm, with no classification badge on the brassard.