This Practice Note provides specific guidance on exclusions and limits of liability relevant to consultant appointments. It should be read alongside Practice Note: Limiting liability in construction contracts, which provides more detailed information. Why consultants seek to limit their liability Professional consultants who carry out design and/or other professional services for construction projects will usually have their own professional indemnity (PI) insurance policies in place in order to protect them if they get sued for a breach of a professional duty. It is usually a requirement of all professional appointments that consultants are required to take out and maintain PI insurance. PI insurance not only protects the consultant, but also protects the relevant employer, as it knows that there is a certain amount of money available, albeit from insurers, to cover any claim against the consultant. For more information on PI insurance, please refer to Practice Note: Professional indemnity insurance in construction projects. PI insurance is, however, expensive, and the level of cover taken out by most consultants is unlikely to cover all potential claims,