Answer: The registration of hazardous chemicals includes the following contents:

(1) Classification and labeling information

(2) Physical and chemical properties

(3) Main uses

(4) Hazardous characteristics

(5) Safety requirements for storage, use and transportation

Emergency measures for dangerous situations. 
     Duplicate registration of the same variety of hazardous chemicals produced or imported by the same enterprise shall not be carried out. If a hazardous chemicals manufacturer or importer discovers that the hazardous chemicals it produces or imports have new hazardous characteristics, it shall promptly go through the formalities for changing the registration content with the hazardous chemicals registration authority.