When registering the number and level of qualified emergency responders, the handler that manufactures, uses and stores toxic and concerned chemical substances shall comply with the following rules:1.For those whose handling of toxic and concerned chemical substances that exceeds the total quantities handled for upper-tier requirements specified in Attachment 3 in any single day, the handling premise thereof shall be registered with 5 emergency responders or more, including 1 incident commander-level responder, 1 specialist-level responder, 1 operations-level responder and 2 technician-level responders;2.For those whose handling of toxic and concerned chemical substances that exceeds the total quantities handled for lower-tier requirements and does not exceed the total quantities handled for upper-tier requirements specified in Attachment 3 in any single day, the handling premise thereof shall be registered with 3 emergency responders or more, including 2 technician-level responders and 1 operations-level responder;3.For those whose handling of Class 1, Class 2 and Class 3 toxic and concerned chemical substances that exceeds the graded handling quantity in any single day or whose handling of Class 4 toxic chemical substances exceeds 500 kg, the handling premise thereof shall be registered with more than 2 emergency responders if the said handling does not exceed the total quantities handled for lower-tier requirements specified in Attachment 3. The said emergency responders shall include at least 1 technician-level responder and 1 operations-level responder;4.For those whose handling of Class 1, Class 2 and Class 3 toxic and concerned chemical substances that does not exceed the graded handling quantity in any single day or whose handling of Class 4 toxic chemical substances is below 500 kg, the handling premise thereof shall be registered with more than 1 awareness-level emergency responder or more.Attachment 3 The characteristics and total quantities handled of toxic and concerned chemical substances for lower-and upper-tier requirements.pdf