The UK Information Commissioners Office has ordered Google to change the privacy policy it introduced in March 2012 to make it more informative for users.

If Google does not change its policy to comply with the UK Data Protection Act by September 20, it could face formal enforcement action, the ICO said yesterday. ICO can issue monetary penalties of up to £500,000 ($752,000) for serious breaches of the Data Protection Act.

ICO has written to Google warning that its privacy policy raises serious questions about its compliance with UK data regulation.

"In particular, we believe that the updated policy does not provide sufficient information to enable UK users of Google's services to understand how their data will be used across all of the company's products," the ICO said.

ICO's action echoes actions taken by other data protection authorities across the EU. Last month, authorities in France and Spain ordered Google to change its policy, and yesterday a German regional data protection authority also announced formal action against the company.

Google maintains that its privacy policy respects European law, and allows Google to create simpler, more effective services, a Google spokesman said. "We have engaged fully with the authorities involved throughout this process, and we'll continue to do so going forward," he added.