Many of the materials and chemicals used on construction sites can present health hazards. It is imperative that site workers and managers are aware of the possible dangers and the precautions that must be taken. This book informs the user about the Control of Substances Hazardous to Health (COSHH) Regulations 1988, which impose certain requirements on the storage, handling and use of chemicals. It gives guidance on implementing the regulations within the construction environment, with cross-references to specific regulations governing lead and asbestos. Clients and designers at an early stage in preparing specifications will find the schedule of hazardous substances in the appendix particularly helpful, as will others looking for alternatives. The book also contains basic information for use in an emergency when no expert advice is readily to hand.