i did this research a while back, when the PTOC 350fps drama was happening. its been sitting here ever since, and i figured it is pretty relevant data and should be available to the community. i was surprised at how moderate AP's limits actually are, we aren't nearly as conservative as some would have suggested.
World Airsoft FPS limits. All FPS readings with 0.20g BBs.
Countries with under 1 Joule limit
Germany – 0.5 Joule (235fps)
Japan – 0.98 Joule (325fps)
Countries with approximately 1 Joule limits
United Kingdom – 1 Joule (330fps)
Italy – 1 Joule (330fps)
Slovenia – 1 Joule (330fps)
Spain – 1 Joule (330fps) Auto, 2.4 Joule (510fps) Semi/Bolt
Hungary – 1.1 Joule (345fps) CQC, 1.5 Joule (400fps) Auto, 3.3 Joule (600fps) Bolt
AP – 1 Joule (330 fps) CQC, 1.5 Joule (400fps) Auto, 2.8 Joule (550fps) Bolt
Ireland – 1 Joule (330fps)
[size=75][i]“The one joule limit most likely arose from UK case law where it was found that energies in excess of one joule were required to penetrate an eyeball (thus causing serious injury). As a result, airsoft devices under one joule of power have been declassified and have become perfectly legal to possess and use within The Republic of Ireland.â€