Below is important information on recommended documents you should understand when preparing for the DHT and DHC exams. STUDENTS ARE REQUIRED TO HAVE PASSED THE DHT EXAM BEFORE TAKING THE DHC EXAM.
The above items are NOT permitted while taking the exam.
The code book link below links to the Code Book that will be accessible on screen for students taking the DHT exam, they may use for study material prior to the exam: DHT Code Book.
There is also a free practice DHT exam on-line:
The following courses are suggested but are not prerequisites. Students may have equivalent industry knowledge.
In addition to the list of suggested courses for the DHT exam, AHC207 – Advanced Detailing Hardware is also suggested prior to the DHC exam but again it is not a prerequisite.
We recommend students taking the DHC brush up on keying by reading Keying Systems and Nomenclature (there was a link to purchase above).
The following material will be permitted for use while testing for the DHC, students must bring these with them to the exam: