What is an Adjusted No Decompression Limit?

Adjusted No Decompression Limit (ANDL) is a time calculation used in scuba diving to manage a diver’s exposure to nitrogen during repetitive dives. Essentially, it’s the adjusted maximum duration that divers can stay at a certain depth without needing decompression stops during their ascent. This time limit is influenced by the residual nitrogen accumulated in the diver’s body from previous dives.