The UK has four main bodies that govern competition:
1. The government ensures competition in the public interest and intervenes when necessary in privatized industries.
2. The Office of Fair Trading (OFT) ensures businesses comply with competition law.
3. The Competition Commission reviews mergers, monopolies and regulatory inquiries, and hears appeals of OFT decisions.
4. Regulators like OFCOM and OFWAT have investigative and enforcement powers like the OFT over privatized industries.