The Frenchman revealed planning work, including construction and renovation of the 11 mooted venues, was well ahead of schedule in comparison to last year's hosts Poland and Ukraine at the same stage.
"For UEFA, things are progressing well," he told reporters. "Today [Friday] there were plenty of green lights, and some that were more amber.
"Four years ago with Poland and Ukraine all the lights were at red.
"I was very happy that the colours this time were different.
"In Ukraine, stadiums were supposed to be finished in 2010 and some of them were completed in March 2012.
"I hope the stadiums in France are ready as quickly as possible."
Lille's new 50,000-seater Grand Stade Metropole, which was completed last year, is one of two stadia already ready for the tournament along with the Stade de France in northern Paris.
President of the organising committee Jacques Lambert said that stadiums in St Etienne and Marseille were halfway through renovation with work on grounds in Bordeaux, Toulouse, Lens and the Parc des Princes in Paris to start soon.
A new stadium in Nice is due to be completed next year while Lyon's 58,000-capacity Stade des Lumieres is scheduled to open for the 2015-16 season.
"There is no situation that is currently out of our control," Lambert said.
It was also announced that a logo for the tournament, which will be expanded to include 24 teams, would be unveiled on June 26.