Most divers know their scuba cylinders need a visual inspection every year and a hydrostatic test every five years (referred to as a requalification or a hydro). The actual regulations for cylinders and other dive equipment, however, are less clear.
The U.S. Food and Drug Administration (FDA) classifies oxygen as a drug when provided to an injured or ill person. It requires specific labeling and product controls and must be individually prescribed to someone suffering from an ailment. When used incorrectly, oxygen can cause damage to someone’s health.
DAN’s vision is to make every dive incident- and accident-free. Improvements in training, equipment, operations, dive boats, and dive computers have made diving significantly safer. The safety of a dive, however, relies heavily on the diver’s practices.