Care to elaborate why and the EPA pls. Just curious.
They are used almost exclusively on emissions equipment and devices, so it's stuff the government doesn't want the general public messing with.
Here's what Snap On says about their Tamperproof Torx Plus Bit Sockets (which don't appear in their online catalog). Last line is the important bit.
"5 lobe configuration. 2 piece pinless design holds
bit securely in socket while facilitating quick bit
replacement. Cold formed socket delivers a strong,
durable tool. Chrome plating resists corrosion and
cleans easily. For sale to authorized technicians only."
Per my application, the screws are holding on a mirror. Pretty sure NOT an upgrade. Possibly though. It is like this on both sides.
That's an odd place to have them. I've only ever seen/heard of them on parts of an engine, intake, exhaust, etc that are related to emissions, hence why Snap On and a few other companies won't sell them to the general public.