Ratification CERD: yes in 1969.

Extracts from state reply to Durban Review questionnaire:
The United Kingdom indicated that it has a comprehensive body of legislation outlawing racial discrimination and providing protection under the criminal law from racist crime and incitement to racial hatred. The Government is currently undertaking a Discrimination Law Review, which is reviewing of the whole of Britain's discrimination law with a view to producing a more streamlined legal framework. In January 2005, the government launched a national strategy to increase race equality and community cohesion, called Improving Opportunity, Strengthening Society.

Link to the full document:
http://www2.ohchr.org/english/issues/racism/DurbanReview/docs/session1/MemberStates/UK.pdf