AZMAT stand for Azardourdous material,in fact it s a mini course given by the airlines(under FAA rules) to transport azardous materials in a separate cargo bin. Some products are limited by numbers or weight and pilots must know how much they can carry. Dont worry, it usually the cargo operator who is responsibe but as a pilot in command, the pilot is responsible to know what he has on board.
I would not be surprised that one day, this course become mandatored before applying for a job.
Do you work for the CAA or JAA? forget what I have said (I do not want give you bad ideas!)