Coffee shops in the Dutch city of Maastricht have banned foreign tourists, except those from Germany and Belgium, from entering their premises from Saturday, according to the local association of coffee shops.
Coffee shops in the Netherlands are places where customers can legally buy and consume cannabis.
"We have put in place a 'neighbouring country' criteria," Marc Josemans, president of the Society of United Coffeeshops and owner of the Easy Going coffee shop, told CNN.
"This is a form of self-regulation. It is not a law, there will be no judge, this was just the only choice we had."