You will need this licence to perform work involving a scheduled carcinogenic substance. Carcinogenic substances are hazardous substances that can cause cancer such as benzene and vinyl chloride.
There are two types of carcinogens to which the licence applies, Schedule 5A and Schedule 5B carcinogens. The use of Schedule 5A carcinogenic substances is only permitted in laboratories, but prohibited in other workplaces. The use of Schedule 5B carcinogenic substances is only permitted in workplaces (including laboratories).
You will not need this licence if you receive a scheduled carcinogen in a sealed container which is not to be opened on the premises. For example, you will not need this licence to transport a scheduled carcinogen in its container.