Clause IV (4) is a part of the party constitution of the British Labour Party. It was changed - through a vote - at the request of the party's new leader Tony Blair in 1994.

The New Clause IV:
The Labour Party...Believes that by the strength of our common endeavour we achieve more than we achieve alone, so as to create for each of us the means to realise our true potential and for all of us a community in which power, wealth and opportunity are in the hands of the many not the few, where the rights we enjoy reflect the duties we owe, and where we live together, freely, in a spirit of solidarity, tolerance and respect.

The Old Clause IV:
The Labour Party...to secure for the workers by hand or by brain the full fruits of their industry and the most equitable distribution thereof that may be possible upon the basis of common ownership of the means of production, distribution and exchange, and the best obtainable system of popular exchange, and the best obtainable system of popular administration and control of each industry or service.