Currently the most important regulation on non-agricultural pesticides in Taiwan is the Environmental Agents Control Act (Taiwan EACA), which was updated by Presidential Order on 27 January 2006. The EACA stipulates that chemical agents or microbial preparations used for environmental sanitation and pollution control are subject to this regulation. Classification and Registration Permit Generally, environmental agents can be classified into the following three types by their product features and application range: Insecticides, miticides, rodenticides, bactericides/fungicides used for environmental sanitation, and other chemical agents used against target organisms (Sanitation Environmental Agent); Synthetic chemical agents used for preventing air, water, or soil pollution, or treat waste, which should be officially announced by Taiwan EPA(pollution control agent); Natural or artificially-modified microbe organisms or their metabolites used for preventing air, water, or soil pollution, or treat waste all of which should be officially announced by Taiwan EPA (microbial environmental agent);   Depending on the role they play in the supply chain and the supervision they are subject to, environmental agents can be also distinguished as technical grade environmental agent, general use environmental agent and special environmental agent: Technical Grade EA: raw material containing the active ingredient and utilized for manufacturing or processing general use environmental agents or special environmental agents General Use EA: manufactured or processed from the Technical Grade EA and used in a similar manner. The concentration of active ingredient(s) should conform to the limits designated by Taiwan EPA; Special Environmental Agent: manufactured or processed from the Technical Grade EA or other chemical agents designated by the central competent authority, SEA shall be used following specific safety protection measures.