The “Dirty Dozen” is a list of 12 factors that can lead to errors and accidents in the diving industry. These factors include lack of communication, distraction, lack of resources, stress, and complacency. Understanding these issues is essential, but it’s also important to develop countermeasures to avoid them. Improving communication and minimizing distractions can greatly enhance safety during dives. This article will discuss these factors in more detail over several parts to better prepare divers for safe practices.