The basic rules that every diver must memorize and apply on every dive without exception.
Safety in diving is not a choice, but rather the difference between an enjoyable sport that lasts for years and an unfortunate accident.
This rule is absolute and has no exceptions. A diving partner is not just a companion, but rather your first line of defense in case of any emergency.
Plan the dive with your partner, determine depths, times and cues, and follow the plan even if everything seems fine.
Each diving level allows you certain dives and exceeding these limits without proper training is a real danger.
Check your equipment before every dive, even if you are diving in the same place with the same equipment, because the problem always occurs when you think it will not.
Stress and panic consume oxygen twice as fast. Stop, draw a breath, think, then act.
There's no shame in saying no, I can't do this diving today. Social pressure is not worth risking your life.
A safe diver will enjoy years of underwater fun. Rules are there to protect you, not to restrict you.