The Federal Trade Commission has strict guidelines about what defines a product as "Made In the USA." According to the FTC, for a product to be called Made in USA, the product must be "all or virtually all" made in the U.S. California laws are even stricter, saying that, “ALL materials must be of domestic origin."
What does that mean to you? Well, if even one small part of a very complex machine is sourced globally, then the manufacturer cannot say, “Made in the USA." It’s all or nothing with this phrase and the FTC.