BMA: British Medical Association
BMJ: British Medical Journal
BOW: Basic Open Water
BP: Backplate
BP: Blood Pressure
BP/W: Backplate and Wing
BPM: beats per minute
BPR: Back Pressure Regulator
BS: British Standard
BSAC: British Sub-Aqua Club
BSI: British Standards Institute
BT: bottom time
BWRAF: Begin with Review and Friend
CADC: Canadian Association of Diving Contractors
CAGE: cerebral arterial gas embolism
CAUS: Canadian Association for Underwater Sciences
CCBA: Closed Circuit Breathing Apparatus
CCR: Closed Circuit Rebreather
CDAA: Cave Diving Association of Australia
CDG: Cave Divers Group
CESA: Controlled Emergency Swimming Ascent
CM: Cutis Marmorata
CNS: central nervous system
CPR: Cardiopulmonary Resuscitation
CPTD: Cumulative Pulmonary Toxic Dose
CSAC: Canadian Sub-Aqua Club
DAN: Diver's Alert Network
DCAP: Decompression Computation and Analysis Program
DCI: decompression illness
DCIEM: Defence and Civil Institute of Environmental Medicine
DCS: decompression sickness
DDA: Disability Discrimination Act
DDC: Deck Decompression Chamber
DDEMS: Defence Diver Extended Medical Skills
DDRC: Diving Disease Research Center
DEMA: Diving Equipment Manufacturers Association
DES: Divers' Environmental Survey
DIR: Do It Right

DIR: Doing It Right
DL: Dive Leader