The protocol for construction and engineering disputes, which applies to professional negligence claims against architects, engineers and quantity surveyors, has been amended twice this year. For the latest version which came into effect on 1 October 2007 click here. Those acting for defendants should note that they have 28 days to reply to a letter of claim or with agreement they can extend time for up to a maximum of 3 months only. The protocol also encompasses claims for professional fees – Cundall Johnson and Partners LLP v Whipps Cross University Hospital NHS Trust [2007] EWHC 2178 (TCC).