I first came across that law when we purchased a new electric water heater for the Milkhouse on the farm back when I was in high school a long time ago.. Turns out the heater was a discontinued line from the company my Mother worked for.
But they still carried parts.. Because of that law.
Which is how I know about it.
Mother.. By the way, was the head of accounting for that firm.. And in all of the state of Michigan, at that time, There was ONE corporation with a woman head of accounting.. (And something like half a dozen surrounding states as well).. She was one exceptional woman.