A foreign worker takes a nap in a garden during his off hours in Doha.

Rights activists said Wednesday they were disappointed by long-awaited reforms of Qatar’s much-criticized “kafala” labor system for foreign workers.

Emir Sheikh Tamim Bin Hamad on Tuesday approved a new law overseeing the sponsorship system — which currently only allows workers to leave the country with the approval of their employer — as well as rules which allow workers to switch jobs.

But activists said the changes were unlikely to make a real difference for the thousands of foreign workers in the Gulf State, many of whom are preparing facilities for Qatar’s hosting of football’s 2022 World Cup.

“These changes are unlikely to lead to a meaningful improvement,” Nicholas McGeehan, Gulf researcher at Human Rights Watch, told AFP.

“One of the most disappointing aspects of the law is the fact that workers will still apparently need employer permission to leave the country,” he said.

The new rules will allow foreign workers wishing to leave Qatar to apply for permission at least 72 hours beforehand to the Interior Ministry.

If this permission is initially denied, employees seeking to leave the country can complain to a grievance committee, which will be established under the new law. The changes also allow foreign workers to switch jobs at the end of a fixed-term contract.

Under the current system, workers who leave a job at the end of a contract have to wait two years to return to Qatar to take up a new position, if the employer objects to the new job.

Exiting the country and changing work contracts had proved the trickiest areas to change and were the subject of fierce debate within Qatar, with the country’s main advisory body, the Shoura Council, questioning reforms earlier this summer.

It was not clear exactly when the changes would take effect, but it was unlikely before 2017 at the earliest.

Qatar has faced fierce criticism from rights groups for its slow pace of reform, even though the country announced earlier this year that it was committed to change the “kafala” system by the end of 2015. The system applies to some 1.8 million foreign workers, who make up about 90 percent of the population in the tiny Gulf State.

The number of foreign workers, many of them laborers on major infrastructure projects directly or indirectly related to the World Cup, is expected to reach 2.5 million by 2020. The “kafala” sponsorship system has faced strong criticism since a spotlight was shone on Qatar after it surprisingly won the right to host football’s biggest tournament in 2010.

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