Become a certified Extended Range Trimix Diver The SSI Extended Range Trimix training program is the core program that all other open-circuit programs build on. This program is the start of your exciting journey to become an accomplished tech diver. Using either a sidemount or twinset configuration, this program prepares you to plan and conduct trimix decompression dives to a maximum depth of 45 meters. You will learn the techniques and procedures for using trimix breathing gases and nitrox mixtures of up to 100% oxygen for decompression. You will earn the SSI Extended Range Trimix diver certification after completing this program and gain new tech diver knowledge. Discover Local Course Dates Find your next diving adventure on Scubago - whether it's near you or at your travel destination - and book directly with the center of your choice. Powered by Sort by: Date ascending Date ascending Date descending Price ascending Price descending Distance ascending Distance decending View on Map Automatic 50 km 100 km 500 km Worldwide Facts and Training Standards Amount of Academic Sessions 5Amount of Pool/Confined Water Sessions 1Amount of Open Water Sessions 6Maximum Training Depth 45 m / 145 ftSuggested duration (h) 18Certification Prerequisites Deep Diving certification, Enriched Air Nitrox 40 certificationSSI Standards Languages Nederlands English English US (imperial) Français Deutsch ελληνικά Italiano 日本語 한국어 Polski Português (Portugal) Русский Español Türkçe українська мова Extend your range Here are the benefits you can expect from attending this training program: Start your technical diving journey using a twinset or sidemount configuration Master your configuration and gain comfort Learn the fundamental principles of decompression diving Start your Technical Diving Journey with Extended Range As an advanced diver, get ready to make all your technical diving dreams come true with SSI’s wide variety of Extended Range specialties. Learn the proper safety procedures needed to become a deep trimix diver and conduct decompression dive to a maximum depth of 60 meters with the SSI Technical Extended Range Trimix program. Looking for more adventure? Advance your skills and increase your tech diver knowledge in the SSI Hypoxic Trimix program and dive to 100 meters. Want to take the equipment off your back and squeeze into smaller spaces for further exploration? Then join the Extended Range Sidemount program today! Technical Extended Range TrimixSSI’s Technical Extended Range Trimix diving program will train you to independently go mixed gas diving to a maximum depth of 60 meters. Dive beyond the no-decompression limit with this highly technical, exciting certification.18Suggested duration (h)6Open Water Sessions More Information Training Prerequisites SSI Entry-Level Programs – Open Water Diver, Freediver, or Mermaid require students to complete a water fitness evaluation prior to open water training. The goal of this evaluation is to determine a comfort level baseline consisting of: Swim Assessment Survival Float Technical Requirements To start training, students must create a MySSI profile. This can either be done via the SSI website at www.divessi.com/register or by installing the MySSI App. Simply download the app for either iOS or Android, set up the user profile, and access the world of diving in minutes! The MySSI App safely stores everything in one place, online or offline – training materials, logbook, and certification cards. This includes Recreational Scuba, Extended Range, Freediving and Mermaid. Training Center Selection & Affiliation Every student must select an SSI Training Center as their “Training Partner” during the course registration process. Affiliation ensures personalized service and a high-quality training experience. Students can also change affiliation or choose to affiliate with multiple Training Centers in their user profile. When affiliating with a Training Center online or via the MySSI App, a Privacy Policy Agreement will be processed to comply with GDPR regulations. Medical & Administrative Requirements Each student or candidate must complete the required SSI Training Record Forms prior to participating in any SSI training program. The forms for minors must be reviewed and signed by a parent or guardian. Responsible Diver Code SSI Responsible Diver Code - Scuba DivingSSI Responsible Diver Code - FreedivingSSI Responsible Diver Code - Extended Range Diving Diver Medical Statement & Questionnaire or Physician’s Approval to Dive (where required) Training Assumption of Risk, Liability Release, & Liability Release, & Hold Harmless Agreement (where required / not applicable within the European Union) Program-specific Completion Record (done by the Instructor prior to certification) Training Course Costs Training consists of various components which are either charged singly or as a package depending on the selected Training Center. The components are: Training Materials / Digital Kit Tuition for Academics and In-Water Training Open Water Training Dives Certification Discover the Wonders of the Deep with SSI's Blog Join us on an exciting journey of discovery and learn more about exhilarating diving adventures, dedicated conservation initiatives, and innovative educational opportunities that will help you illuminate the extraordinary beauty of the underwater world. Let's explore the underwater world together and delve into the hidden wonders beneath the gentle waves. Scuba Diving Business: How SSI Supports Centers and Pros 2026-10-13 Discover how SSI supports your scuba diving business with Pro Rewards, MySSI tools, marketing resources, flexible teaching, and 2027 renewal benefits. Scuba Diving for Veterans: How Diving for All Supports Healing After Trauma 2026-10-09 Learn how scuba diving for veterans can support confidence and connection through Germany's Diving for All initiative and SSI Classified Diving. Malta Diving: 10 Best Dive Sites in Malta, Gozo & Comino 2026-09-28 Plan your Malta diving trip with 10 standout sites across Malta, Gozo, and Comino, from blue-lit caves and shore dives to historic wrecks. Featured destinations that are ideal for technical diving SSI’s Extended Range allows you to go beyond the limits of recreational diving. This extensive compilation of globally recognized tec diving programs will equip you to go decompression diving, explore more challenging environments, and use new equipment configurations. © iStock/MartinM303Scotlandin the summer months, you can can expect to see sharks in ScotlandLearn more © iStock/ferrantraiteMexicoDiving in Mexico is a breathtaking, world-class experience. This country offers many adventures and a landscape full of natural wonders.Learn more © iStock-LunamarinaFloridaThe Sunshine State Florida offers many great and divers dive sites from the tropical Florida Keys to deep shipwrecks and crystal clear freshwater springs.Learn more © iStock/RudyBalaskoItalyItaly is a peninsula in southern Europe, famously shaped like a boot that is surrounded by three parts of Mediterranean - offering various dive sites.Learn more © iStock/daniloviPhilippinesThe Philippines is an archipelago composed of over 7,000 islands in three main regions: Luzon, Visayas and Mindanao.Learn more © AdobeStock/saman527Sri LankaSri Lanka has a warm and tropical climate and is home to an amazing range of land animals and marine life which makes up to a great dive destination.Learn more