Google DeepMind employees in the UK have asked the government to intervene in a push to unionize the artificial intelligence lab.

On Thursday, the Communication Workers Union and Unite the Union—put forward by Google DeepMind staff as joint representatives—filed an application to the Central Arbitration Committee, a government body that resolves disputes between employers and unions.

The application, which was seen by WIRED, asks the CAC to confirm the unions have enough support from workers to trigger a unionization ballot. The company would be required by law to respect the results. If successful, roughly 1,000 staff working in product-focused roles at Google DeepMind would qualify for union membership.