End User/Amateur User 
(Biocides that can be used in the home by the general public and are approved for ‘amateur’ use)

Agricultural/Professional User 
(Are those using biocides in the course of their job or business, who have received appropriate information, instruction and training in their use).

Pest Control Company/Professional User 
(Are those using biocides in the course of their job or business, who have received appropriate information, instruction and training in their use).