Free Online Retailer Training Available: The Massachusetts Department of Public Health, in partnership with the Massachusetts Health Officers Association, has developed a free online course to help tobacco retailers teach their employees how to check the ID of a customer who wants to buy tobacco products. The course shows things to look out for, such as fake ID cards and signs of ID tampering, and explains how and when to refuse a sale. The online course also describes the current state laws for selling tobacco. Viewers should take the course on a desktop computer. It takes 20 minutes to complete.