ARB rebel Ian Salisbury has turned to the European Commission in his ongoing battle to sideline the Part 3 qualification.
The Oxford-based practitioner has now lodged a formal complaint with the commission in a bid to create a level playing field for home-grown architects.
At present, foreign-qualified architects do not need to take Part 3 and Salisbury maintains that there is no legal reason why British-trained architects should have to take it either.
In support of his complaint, Salisbury has quoted extensively from an RIBA report dated 29 September 2004, which stated that 'it was only a matter of time' before a UK student challenged the current registration arrangements (AJ 7.10.04).
He has also relied on a council directive from 10 June 1985, on the mutual recognition of qualifications and Article 43 of the Treaty of the European Union.
Robin Vaughan, the ARB's chief executive, has refused to comment on the move.
l Meanwhile, Salisbury's own legal battle with the board, over the publication of internal legal advice, continues to rumble on. More fireworks are expected at today's (Thursday) ARB board meeting - part of which is behind closed doors.
See Letters, pages 20-21.