The Defence and Civil Institute of Environmental Medicine is Canada’s centre of expertise for defence research and development in human performance and protection, human-systems integration and operational medicine. The DCIEM Tables are the result of more than 30 years of research and development. DCIEM pioneered the use of digital decompression computers and has used computer-decompression models since the beginning of the project. DCIEM has amassed a computer database containing information on thousands of dives.
The DCIEM Manual first published in 1992 contains decompression tables for air and enriched air (Nitrox). Air decompression tables were developed in the 1980’s for Canadian Forces operational use, these tables have also been adopted by foreign navies, commercial diving companies and other civilian organizations. The Sport Diving Tables were a result of the original air diving tables adapted for use by recreational divers and have had a wide acceptance by the sport diving community. In addition to air tables full Nitrox Tables are also included.
The tables have been developed and validated by the impressive Diving Research Facility resources. This facility includes a 7 foot diameter hyperbaric chamber that can be filled with fresh water and chilled to 3ºC and pressurized to simulate dives to 1800m below sea level. Since its installation in 1978 the facility has been used for more than 8,800 dives.