Qatar has come under the media microscope since winning the right to host the 2022 tournament, with doubts thrown up over corruption, its human rights record and treatment of its massive foreign workforce.
A recent Amnesty International report into Qatar claims some migrant workers are victims of forced labour there and treated appallingly by subcontractors employed by leading construction companies in a sector rife with abuse.
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"From the DFB's perspective, it would be in Qatar's interests to define a period at the end of which an independent body such as Amnesty International or the International Trade Union Confederation checks and rates the working conditions at the World Cup stadiums," Niersbach told German magazine Spiegel.
Niersbach says Qatar should have until the end of 2015 to make significant progress or risk losing the right to host the World Cup.
The 64-year-old announced on Friday that he plans to stand as a candidate for FIFA's executive committee after ex-DFB president Theo Zwanziger steps down in May.