err.. not TOTALLY true...
Maastricht intend to reduce their flow rates by 25%, but many EUR states aren't being quite so draconian, and SOME aren't adding extra flow at all.
You can get a full list from CFMU but some highlights:
France : Most ACCs flows reduced by 10 to 15% for 10 to 15 days
Germany : ACCs flows reduced by up to 10% for 7 to 10 days
Spain : MAX flow restriction is 20%
CFMU are also making VERY CLEAR in all their bulletins relating to the introduction of EUR RVSM that UK restriction are due to NERC, NOT RVSM.
EUROCONTROL are extremely keen (and rightly so) that RVSM be seen as a step forward in increasing capacity. They do not want the UKs introduction of NERC and the subsequent delays that are inevitable to be blamed on their project.
Rgds BEX