A nice idea mate but suppliers/manufacturers are only going to do that if it is; A Required by law or B Going to sell more product (or the same amount at a higher price.)
If it is required by law, it will be just another thing to yellow sticker or fine 4wd drivers for, even if it is a national snandard and doesn't change from stste to state. If it is introduced by reputable manufacturers, their pricing would have to increase to have the stamping done and they would be at a disadvantage to on line sellers in other countries. Even if the idea was accepted in one way or the other, the legislation and promolgation would take longer than Brexit. I guess the best way is to keep discussing the use and dangers of all this gear and keep each other aware using forums like this one. Look after each other.