I came across this information recently and thought it might be of help to someone:
In 1978, the ECMT Council of Ministers agreed that all Member Countries of the ECMT would grant the same parking concessions to people with disabilities as they offered to their own nationals. These concessions usually allowed special parking in areas reserved for people with disabilities, or allowed longer parking periods or exemptions from charges.
This Resolution was updated and extended in scope in 1997. In addition to all the Member countries of ECMT this Resolution now applies also to the ECMT Associated Countries (Australia, Canada, Japan, Korea, New Zealand, United States). This means that disabled motorists from all ECMT Member and Associate countries are now entitled to the same parking concessions as nationals in all ECMT Countries. The only condition is the display of a badge showing the international wheelchair symbol.
The website is at
http://www.internationaltransportfor...y/parking.html.