This is usefule (if misrepresented) legislation.
Quote from Anon above: "I'd assume France (and some other nations) have horse farms where animals are reared for eating as opposed to a horse reared for riding."
This is entirely correct. I live in the Dordogne and there are several such farms within a mile or so of here. We also own several horses ourselves which are for riding.
We already have to track what medications are given to each one as they become unsuitable for human consumption after certain treatments. Microchipping horses is a requirement under many circumstances here so, as long as the vet is on the up-and-up, the records are accurate.
There are some very potent remedies given to horses and they can linger in the beast. I approve of this system. In the UK, there is little chipping and so it makes sense to declare animals to be "food" or "not food" from the get-go. This dumbing down of the EU system is because of the poor regime existing in places like the UK where existing regulation and tracking is poor.
Additionally, if chipping was mandatory in the UK, there might be a lot less horse theft going on. And there is a lot.
Related information:
Certain horses with pale coats are automatically declared unsuitable for eating as it can be difficult to see if they have developed melanoma.
From our horse farmer neighbours, it appears that much (most?) of the horse meat they produce is, in fact, sold to Italy. The italians prefer the taste of youger horses (about 3yo). Much french horse meat is imported from Eastern Europe and is from older, working animals. The French taste is for this mature, lean meat.