You will need this licence if you intend to operate a business that removes any amount of friable asbestos (material that contains asbestos and is in a powder form or that can be crumbled, pulverised or reduced to a powder by hand pressure when dry).
Class A licence holders must ensure the removal of friable asbestos is directly supervised by a nominated supervisor. Class A licence holders are also authorised to carry out Class B asbestos removal work.