Easily communicate the number to call in the event of a spill or leak with CHEMTREC's Emergency Phone Number Marking For Railroad Tankers. Printed on permanent vinyl, these markings feature the emergency contact phone numbers for Canadian, American or International chemical emergencies. Labelmaster is the exclusive authorized label manufacturer of CHEMTREC. Only companies registered with CHEMTREC are authorized to purchase and use these labels. You may receive follow up from CHEMTREC regarding your customer status. For more information or to register as a customer visit CHEMTREC.com.