There are going to be an estimated 20,000 fewer hire cars available in the Balearics.
Fines for 400 hire cars parked in streets have been issued.
According to figures provided by the Balearic Ports Authority, there could be as many as 90,000 hire cars in Majorca this summer.
More than a thousand stickers have been put on hire cars.
The multinationals were deflecting responsibility for traffic congestion.
More public transport options would benefit the image of the Balearics.
The regional tourism ministry argues that it is impossible to know exactly how many vehicles there are.
It is estimated that some 90,000 hire cars will be available this summer.
"If they were obliged to pay road tax, which at the moment they do not, then there wouldn't be the problem that we have."
It is estimated that some 40% of hire cars "left" the Balearics and were registered on the mainland.