It’s still legal to buy and sell asbestos in the United States. It has been banned in only a few products, including:
See the U.S. EPA web site https://www.epa.gov/asbestos/us-federal-bans-asbestos.
Other products, such as flooring, roofing, mastic and glues, caulk, plaster, and cement products can still be made and sold with asbestos in them. Building contractors and do-it-yourselfers should be aware of what they are buying and assume any materials not banned may contain asbestos.
In December 2018, the Canadian government banned asbestos sales, mining, and manufacturing with some exemptions. See the Canadian government’s web site article https://www.canada.ca/en/environment-climate-change/news/2018/10/the-government-of-canadatakes- measures-to-ban-asbestos-and-asbestoscontaining-products.html