When transporting containers containing hazardous chemicals within the workplace, the employer may be exempted from relabeling as prescribed in Attachment 1 if the containers have already been labeled in accordance with related transportation laws and regulations.Employers must label containers in accordance with these Regulations when workers engage in operations involving loading and unloading, transporting, handling, or utilization of hazardous chemicals..Attachment 1 Classification and Labeling Requirements for Hazardous Chemicals.pdfAttachment 1 Classification and Labeling Requirements for Hazardous Chemicals.doc