Unfortunately, it turns out that the document I found which appeared to be the EU regulation was not the actual regulation. It was a preparatory document for producing the regulation. (The original document I was pointed to in bug 1370591 was a press release, even further off the mark.)
As a result, the design did not comply with the regulation. This explains Albert's observation here that some handsets show "a notification at 70/80% that doesn't let you increase the volume unless you say 'ok, sure'": that requirement is part of the actual regulation.
Complying with the regulation is now tracked in bug 1480912, which has to be private for now because it includes copyrighted attachments.
Unfortunately, it turns out that the document I found which appeared to be the EU regulation was not the actual regulation. It was a preparatory document for producing the regulation. (The original document I was pointed to in bug 1370591 was a press release, even further off the mark.)
As a result, the design did not comply with the regulation. This explains Albert's observation here that some handsets show "a notification at 70/80% that doesn't let you increase the volume unless you say 'ok, sure'": that requirement is part of the actual regulation.
Complying with the regulation is now tracked in bug 1480912, which has to be private for now because it includes copyrighted attachments.