
It's essential to know your equipment so you can improve your technical diving skills. This will make it easy to locate the equipment you need in an emergency. It also helps to practice using your backup equipment. You shouldn't take your backup equipment with you, but you should practice using it when needed. This will ensure that you have a backup set of equipment in case something goes wrong.
TDI
Technical divers should be able to use a decompression device. Technical divers must be able calculate the number and order of decompression stops necessary to perform a multilevel dive.

NAUI
The NAUI technical diving skills class requires 20 hours of classroom instruction and focuses on advanced diving skills. It also includes advanced lifesaving, rescue, or contingency procedures. For students to enroll in this course, they must have advanced scuba diver certification or an equivalent. It also requires a minimum age and pre-requisites.
GUE
GUE technical divers skills certification includes the ability to perform rescue operations and technical dive operations. These skills include the ability to properly manage an unconscious diver underwater, switch regulators and valves, and use GUE equipment in the water. Divers must also be competent in open water skills. During the course, scuba divers are also required to swim at least 500 yards (450 meters) on one breath hold, demonstrate basic equipment proficiency, and recognize their diving limits.
IANTD
IANTD Technical Divers goes beyond recreational diving. It adds a whole new level to safety and confidence to your diving experience. The program teaches students to use rebreathers that have cutting-edge benefits like extended bottom time and better decompression.
DSAT
DSAT TecRec's technical diving skills courses were first created in the 2000s. They have produced high-quality technical divers. It uses state-of-the art training materials and has a logical, integrated course flow. Each level covers everything, from beginner to advanced. The modular approach allows students to move at their own pace and gain valuable experience at each level.

PADI
If you love diving and want to get more advanced, you can enroll in a PADI technical diving skills course. PADI Tec courses teach you everything, from how to plan your dives to how to use decompression software. You will be able to dive up to 50m (165ft) without any decompression time. Additionally, you will learn how to use a computer-based decompression software program. There are several levels to this course. Your goal is becoming a professional technical diver.