Asbestos fibers come from serpentine rocks and were previously used in building materials to strengthen or stop heat from burning adjacent materials.
This material was also used in brake pads and insulation. In 1963 the Clean Air Act was first passed. There have been several major updates.
The US can legally import goods that contain asbestos. California banned thermal system insulation (that yellow stuff around heating registers in older homes and office buildings) in 1975. In 2016 President Obama signed the Frank R. Lautenberg Chemical Safety for the 21st Century Act.
Of the most concern to most of us are aftermarket automotive brake linings and other vehicle friction products.
The major manufacturer that used these fibers in their products in the US was Johns-Manville. They declared bankruptcy in 1984, trying to avoid litigation. There is a compensation fund that may be available to you if you suffer from long-term asbestos exposure. Contact an attorney that specializes in this type of litigation.
Asbestos is not part of the standard ASTM (American Society for Testing and Materials).