Correct stickers for Europe

Craig 111:
60, 80, 90 roundels on the lower of the left trailer door if you’re heading into France

Are they a legal requirement on a UK truck for France ■■?
I’ve never had them and never been pulled up for not having them, in over 20 years travelling through France, with the usual allocation of pulls for checks.
We don’t have the Angles Morts stickers either.

My boss doesn’t like stickers all over his kit either. What is legally required is there, supplied by the boss and fitted.
Generally, if your vehicle has an in-date MOT (or equivalent) and everything is up to scratch, you are as legal abroad as you are in your own country.
So, some countries require their nations trucks to have certain speed roundels on the back, France is 1.
The UK doesn’t, therefore a UK truck doesn’t require speed roundels anywhere in Europe.

As far as I remember, Euro Class stickers were required when road tolls/taxes were charged by individual countries, seperately. When you had 1 box per country stuck to your windscreen.
We now have one box, set up for all the countries you are likely to travel through (except the very few countries still on vignette). It pays per km at the rate for the vehicle and Euro Class. Mine covers Belgium, France, Germany, Austria and Switzerland.
You were also required to have the Euro Class sticker for each country, not just 1. Which could be half a dozen stickers, all saying the same thing, but slightly different stickers. You don’t see them any more, on newish trucks, or do you?