
It's essential to know your equipment so you can improve your technical diving skills. This will help you quickly find your equipment in case of an emergency. It is also a good idea to practice using your backup gear. It is important to practice using your backup equipment when you need it. You will have an extra set in case of emergency.
TDI
Technical divers must be knowledgeable about dive computer settings and gas blends. Technical divers must know how to calculate the number decompression stop needed to make a super multilevel diving experience.

NAUI
The NAUI technical dive skills course is 20 hours long and focuses on advanced techniques and skills. The course also covers advanced lifesaving, rescue and contingency procedures. For this course to be offered, students need to have advanced certification as a diver or an equivalent. You also need to meet the minimum age requirement and other pre-requisites.
GUE
GUE technical divers skills certification includes the ability to perform rescue operations and technical dive operations. These skills include the ability switch regulators and valves underwater, manage an unconscious diver, and use GUE equipment within the water. Additionally, divers must be able to demonstrate open water skills. This includes ascent and descend. Scuba divers will also need to be able swim at least 500m (450m) per breath. They must also demonstrate basic equipment proficiency and be able recognize their diving limits.
IANTD
The IANTD Technical Diver Program goes beyond recreational diving. It brings a whole new level in safety and comfort to the diving experience. Among other things, it trains its students to use rebreathers, which have cutting-edge benefits, such as extended bottom times and better decompression.
DSAT
The DSAT TecRec range of technical diving skills courses was first developed in the early 2000s. The courses have consistently produced highly trained technical divers. Its training methodology includes state-of-the-art training materials and a logical integrated course flow. All the training levels cover everything from basic to advanced, and the modular approach lets students progress at their own pace and gain experience at each level.

PADI
You can take a PADI technical dive skills course if you are passionate about diving. PADI Tec courses include everything you need to know about planning and using decompression equipment. You'll be able dive to depths as high as 50m (165ft), and you'll also learn how a desk-top decompression tool program works. This course has several levels. The goal is to be a professional technical diver.