The new Competition and Markets Authority (CMA) will come into force formally in April 2014. It will take forward the responsibilities of the Office of Fair Trading and Competition Commission, which have previously investigated the groceries market and put in place remedies. The CMA will similarly have access to powers (under the Enterprise Act 2002) to deal with anti-competitive behaviour in UK markets. Decisions on individual cases will be a matter for the CMA.
Following the Competition Commission's recommendation in its groceries market investigation, the Government has established a Groceries Code Adjudicator which focuses on contract issues between supermarkets and suppliers.