{"product_id":"tdi-advanced-nitrox-deco-procedures-course","title":"TDI Advanced Nitrox \u0026 Deco Procedures Course","description":"\u003cdiv style=\"padding-bottom:28px;\"\u003e\n\u003cp style=\"font-family:'Quicksand',sans-serif;font-weight:700;color:#14295f;text-transform:uppercase;letter-spacing:.5px;font-size:1.15rem;line-height:1.3;margin:0 0 12px;\"\u003eTechnical Diving · Two TDI Certifications · Taught in San Diego\u003c\/p\u003e\n\u003cp style=\"font-family:'Mulish',sans-serif;font-size:1.15rem;color:#3d4756;line-height:1.6;margin:0 0 14px;\"\u003e\u003cstrong style=\"color:#14295f;\"\u003eAdvanced Nitrox and Decompression Procedures, taught together the way they were designed.\u003c\/strong\u003e This combined program runs over 3 days aboard the Marissa in San Diego, with all of your ocean training dives off the boat, and you leave with two TDI certifications: Advanced Nitrox for any mix from EAN 21 to 100% oxygen, and Decompression Procedures for planned staged decompression dives to 150 feet. Boat charters, your nitrox and oxygen fills, and technical rental gear are included in the price. You'll need your own mask, fins, boots, and snorkel, and you'll handle your own travel and lodging.\u003c\/p\u003e\n\u003cp style=\"font-family:'Mulish',sans-serif;font-size:1.02rem;color:#3d4756;line-height:1.55;margin:0;\"\u003eVeterans can put their \u003ca href=\"\/pages\/gi-bill-scuba-certification\" style=\"color:#3f7fa6;font-weight:700;text-decoration:none;\"\u003eGI Bill\u003c\/a\u003e toward their training, and families can use \u003ca href=\"\/pages\/arizona-esa-scuba-certification\" style=\"color:#3f7fa6;font-weight:700;text-decoration:none;\"\u003eESA or ClassWallet funds\u003c\/a\u003e. See if you qualify.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!--DPD-SPLIT--\u003e\n\u003cdiv style=\"font-family:'Mulish',sans-serif;color:#2c3340;font-size:22px;line-height:1.6;max-width:1040px;margin:0 auto;\"\u003e\n\u003csection style=\"text-align:center;\"\u003e\n\u003ch2 style=\"font-family:'Quicksand',sans-serif;color:#14295f;font-size:46px;font-weight:700;margin:0 0 12px;\"\u003eTDI Advanced Nitrox \u0026amp; Deco Procedures Course\u003c\/h2\u003e\n\u003cdiv style=\"font-family:'Quicksand',sans-serif;font-weight:700;color:#3f7fa6;text-transform:uppercase;letter-spacing:1px;font-size:20px;margin:0 0 24px;\"\u003eTechnical Diving · Two TDI Certifications · Taught in San Diego\u003c\/div\u003e\n\u003cp style=\"max-width:900px;margin:0 auto;font-size:25px;color:#3d4756;\"\u003eAdvanced Nitrox gives you the high-oxygen gases, and Decompression Procedures teaches you to plan and run the staged stops that use them, so TDI built the two to be taken as a pair. We teach the whole program in San Diego, classroom and ocean dives together, and you finish with both cards and the foundation for every technical course that comes after.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003ch2 style=\"text-align:center;font-family:'Quicksand',sans-serif;color:#14295f;font-size:38px;font-weight:700;margin:48px 0 8px;\"\u003eWhat it unlocks\u003c\/h2\u003e\n\u003csection style=\"background:#e9f3fb;border-top:5px solid #3f8bb0;border-radius:16px;padding:30px 36px 32px;margin:26px 0 8px;\"\u003e\n\u003cul style=\"max-width:860px;margin:0 auto;padding-left:22px;\"\u003e\n\u003cli style=\"margin-bottom:12px;font-size:23px;\"\u003eDive any mix from EAN 21 through 100% oxygen\u003c\/li\u003e\n\u003cli style=\"margin-bottom:12px;font-size:23px;\"\u003ePlan and execute staged decompression dives to a maximum depth of 150 ft \/ 45 m\u003c\/li\u003e\n\u003cli style=\"margin-bottom:12px;font-size:23px;\"\u003eQualify to move on to Extended Range, Advanced Wreck, Trimix, and rebreather training\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:26px;margin:36px 0;\"\u003e\n\u003cdiv style=\"background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 8px 22px rgba(20,41,95,.06);border-top:5px solid #3f8bb0;\"\u003e\n\u003cdiv style=\"padding:30px 32px 34px;\"\u003e\n\u003ch3 style=\"font-family:'Quicksand',sans-serif;color:#14295f;text-align:center;font-size:30px;font-weight:700;margin:0 0 14px;\"\u003eWhat you'll learn\u003c\/h3\u003e\n\u003cul style=\"margin:16px 0 0 22px;color:#3d4756;padding:0;\"\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eThe physics of high oxygen partial pressures, plus CNS and pulmonary oxygen toxicity limits\u003c\/li\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eDecompression planning: stop depths, stop times, ascent gas, and gas selection\u003c\/li\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eOxygen-clean equipment, cylinder labeling, and gas analysis\u003c\/li\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eContingency planning for omitted decompression\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 8px 22px rgba(20,41,95,.06);border-top:5px solid #4a90c2;\"\u003e\n\u003cdiv style=\"padding:30px 32px 34px;\"\u003e\n\u003ch3 style=\"font-family:'Quicksand',sans-serif;color:#14295f;text-align:center;font-size:30px;font-weight:700;margin:0 0 14px;\"\u003eIn-water skills\u003c\/h3\u003e\n\u003cul style=\"margin:16px 0 0 22px;color:#3d4756;padding:0;\"\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003ePrecise buoyancy and horizontal trim while holding a stop\u003c\/li\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eGas switches at depth between back gas and deco gases\u003c\/li\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eSMB deployment, air sharing, and team awareness\u003c\/li\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eHandling a free-flow, an equipment failure, or omitted decompression\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection style=\"background:#f4f7ec;border:1px solid #e6ecd6;border-radius:16px;padding:30px 34px;margin:30px 0 8px;\"\u003e\n\u003ch3 style=\"font-family:'Quicksand',sans-serif;color:#14295f;text-align:center;font-size:30px;margin:0 0 12px;\"\u003eYour training dives happen in the Pacific\u003c\/h3\u003e\n\u003cp style=\"text-align:center;color:#3d4756;font-size:22px;margin:0 auto;max-width:860px;\"\u003eThe whole course runs over 3 days aboard the Marissa in San Diego, so your decompression dives are real ocean dives off the boat, with the depth this certification is built for. Charters, gas fills, and tech rental gear are covered, and we'll help you sort out what to bring from home.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:26px;margin:36px 0;\"\u003e\n\u003cdiv style=\"background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 8px 22px rgba(20,41,95,.06);border-top:5px solid #3f8bb0;\"\u003e\n\u003cdiv style=\"padding:30px 32px 34px;\"\u003e\n\u003ch3 style=\"font-family:'Quicksand',sans-serif;color:#14295f;text-align:center;font-size:30px;font-weight:700;margin:0 0 14px;\"\u003eWho can enroll\u003c\/h3\u003e\n\u003cul style=\"margin:16px 0 0 22px;color:#3d4756;padding:0;\"\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eCertified \u003ca href=\"\/products\/tdi-nitrox\" style=\"color:#3f7fa6;font-weight:700;text-decoration:none;\"\u003eNitrox\u003c\/a\u003e diver and certified \u003ca href=\"\/products\/advanced-adventure\" style=\"color:#3f7fa6;font-weight:700;text-decoration:none;\"\u003eSDI Advanced Adventure\u003c\/a\u003e or \u003ca href=\"\/products\/advanced-diver\" style=\"color:#3f7fa6;font-weight:700;text-decoration:none;\"\u003eAdvanced Diver\u003c\/a\u003e, or equivalent\u003c\/li\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eProof of 25 logged open water dives\u003c\/li\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eMinimum age 18\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 8px 22px rgba(20,41,95,.06);border-top:5px solid #4a90c2;\"\u003e\n\u003cdiv style=\"padding:30px 32px 34px;\"\u003e\n\u003ch3 style=\"font-family:'Quicksand',sans-serif;color:#14295f;text-align:center;font-size:30px;font-weight:700;margin:0 0 14px;\"\u003eWhere it leads\u003c\/h3\u003e\n\u003cul style=\"margin:16px 0 0 22px;color:#3d4756;padding:0;\"\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eTDI Extended Range and Advanced Wreck\u003c\/li\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eTDI Trimix, for depths beyond air and nitrox\u003c\/li\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eRebreather training, and it pairs naturally with \u003ca href=\"\/products\/side-mount\" style=\"color:#3f7fa6;font-weight:700;text-decoration:none;\"\u003eSidemount\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:26px;margin:34px 0;\"\u003e\n\u003cdiv style=\"background:#e9f3fb;border-top:5px solid #3f8bb0;border-radius:16px;padding:30px 32px 32px;\"\u003e\n\u003ch2 style=\"font-family:'Quicksand',sans-serif;color:#14295f;text-align:center;font-size:30px;margin:0 0 14px;\"\u003e✓ What's included\u003c\/h2\u003e\n\u003cul style=\"margin:0 0 0 22px;color:#3d4756;padding:0;\"\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eInstruction for both courses, plus the TDI Advanced Nitrox and Decompression Procedures knowledge materials\u003c\/li\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003e3 days aboard the Marissa for your ocean training dives in San Diego\u003c\/li\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eYour nitrox and oxygen gas fills\u003c\/li\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eTechnical rental gear: stage cylinders, deco regulators, BCD, and tanks\u003c\/li\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eBoth TDI certifications on completion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#fdeeeb;border-top:5px solid #e07a5f;border-radius:16px;padding:30px 32px 32px;\"\u003e\n\u003ch2 style=\"font-family:'Quicksand',sans-serif;color:#14295f;text-align:center;font-size:30px;margin:0 0 14px;\"\u003eWhat to bring\u003c\/h2\u003e\n\u003cul style=\"margin:0 0 0 22px;color:#3d4756;padding:0;\"\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003e\n\u003cstrong style=\"color:#14295f;\"\u003eYour own mask, fins, boots, and snorkel\u003c\/strong\u003e (Required equipment. New student gear discount: enrolled students save 10% on all gear purchases, so come into the shop and get fitted by our professional staff.)\u003c\/li\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eExposure protection for the Pacific, ask us what fits the time of year\u003c\/li\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eYour Nitrox and Advanced certification cards and proof of 25 logged dives\u003c\/li\u003e\n\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003e\n\u003cstrong style=\"color:#14295f;\"\u003eNot included:\u003c\/strong\u003e travel to San Diego, lodging, and meals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection style=\"margin:46px 0 8px;\"\u003e\n\u003ch2 style=\"text-align:center;font-family:'Quicksand',sans-serif;color:#14295f;font-size:40px;margin:0 0 24px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails open=\"\" style=\"background:#fff;border-radius:12px;box-shadow:0 4px 12px rgba(20,41,95,.05);margin-bottom:14px;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;padding:20px 26px;font-family:'Quicksand',sans-serif;font-weight:700;color:#14295f;font-size:24px;\"\u003eWhy take these two courses together?\u003c\/summary\u003e\n\u003cdiv style=\"padding:0 26px 22px;color:#3d4756;font-size:22px;\"\u003eAdvanced Nitrox supplies the high-oxygen deco gases, and Decompression Procedures teaches you to plan and switch to them, so TDI designed them as a pair. Doing both in one program means one trip, one set of training dives, and two certifications.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background:#fff;border-radius:12px;box-shadow:0 4px 12px rgba(20,41,95,.05);margin-bottom:14px;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;padding:20px 26px;font-family:'Quicksand',sans-serif;font-weight:700;color:#14295f;font-size:24px;\"\u003eWhere is the course taught?\u003c\/summary\u003e\n\u003cdiv style=\"padding:0 26px 22px;color:#3d4756;font-size:22px;\"\u003eThe whole program, classroom and dives, is taught in San Diego over 3 days aboard the Marissa, and all of your training dives are ocean dives off the boat.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background:#fff;border-radius:12px;box-shadow:0 4px 12px rgba(20,41,95,.05);margin-bottom:14px;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;padding:20px 26px;font-family:'Quicksand',sans-serif;font-weight:700;color:#14295f;font-size:24px;\"\u003eWhat does the price include?\u003c\/summary\u003e\n\u003cdiv style=\"padding:0 26px 22px;color:#3d4756;font-size:22px;\"\u003eInstruction and materials for both courses, boat charters, your nitrox and oxygen fills, technical rental gear, and both TDI certifications. Travel to San Diego, lodging, and meals are on you.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background:#fff;border-radius:12px;box-shadow:0 4px 12px rgba(20,41,95,.05);margin-bottom:14px;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;padding:20px 26px;font-family:'Quicksand',sans-serif;font-weight:700;color:#14295f;font-size:24px;\"\u003eWhat are the prerequisites?\u003c\/summary\u003e\n\u003cdiv style=\"padding:0 26px 22px;color:#3d4756;font-size:22px;\"\u003eYou need a Nitrox certification and SDI Advanced Adventure or Advanced Diver (or equivalent), proof of 25 logged open water dives, and you must be at least 18.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background:#fff;border-radius:12px;box-shadow:0 4px 12px rgba(20,41,95,.05);margin-bottom:14px;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;padding:20px 26px;font-family:'Quicksand',sans-serif;font-weight:700;color:#14295f;font-size:24px;\"\u003eHow deep do these dives go?\u003c\/summary\u003e\n\u003cdiv style=\"padding:0 26px 22px;color:#3d4756;font-size:22px;\"\u003eStaged decompression dives in this program go to a maximum depth of 150 feet.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background:#fff;border-radius:12px;box-shadow:0 4px 12px rgba(20,41,95,.05);margin-bottom:14px;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;padding:20px 26px;font-family:'Quicksand',sans-serif;font-weight:700;color:#14295f;font-size:24px;\"\u003eCan I use my own tech gear?\u003c\/summary\u003e\n\u003cdiv style=\"padding:0 26px 22px;color:#3d4756;font-size:22px;\"\u003eYes. Technical rental gear is included, but divers who train on their own equipment are better prepared for what comes next. Come by the shop and we'll go over your setup before the trip.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection style=\"background:#4a90c2;border-radius:16px;text-align:center;padding:48px 32px;margin:46px 0 24px;\"\u003e\n\u003ch2 style=\"font-family:'Quicksand',sans-serif;color:#14295f;font-size:46px;margin:0 0 14px;\"\u003eLet's. Go. Diving.\u003c\/h2\u003e\n\u003cp style=\"color:#fff;font-size:25px;max-width:700px;margin:0 auto 28px;\"\u003eCall the shop and we'll get you signed up, check your prerequisites, and help you plan the trip to San Diego.\u003c\/p\u003e\n\u003ca href=\"tel:+14808814013\" style=\"display:inline-block;background:#e07a5f;color:#12233f;font-family:'Quicksand',sans-serif;font-weight:700;font-size:24px;border-radius:44px;padding:18px 42px;text-decoration:none;\"\u003eCall the shop (480) 881-4013\u003c\/a\u003e\u003c\/section\u003e\n\n\u003cp style=\"text-align:center;color:#5a6675;font-size:19px;margin:0;\"\u003eTDI Advanced Nitrox and TDI Decompression Procedures, combined and taught over 3 days aboard the Marissa in San Diego. Prerequisites: Nitrox certification, SDI Advanced Adventure or Advanced Diver (or equivalent), 25 logged dives, minimum age 18.\u003c\/p\u003e\n\u003cp style=\"text-align:center;color:#8592a2;font-size:17px;margin:22px 0 0;padding-top:18px;border-top:1px solid #e4e9ef;\"\u003eBy booking, you agree to our \u003ca href=\"\/policies\/terms-of-service\" style=\"color:#3f7fa6;font-weight:700;text-decoration:none;\"\u003eTerms \u0026amp; Conditions\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Dive Arizona","offers":[{"title":"Dec 11 to 13, 2026","offer_id":52913686872295,"sku":"CLASS-01a174c5-b56e-7444-b0e7-8cc8104540e7","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"I will pick a date later","offer_id":52913610227943,"sku":"tdi-advanced-nitrox-deco-procedures-course","price":2250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0807\/4156\/4647\/files\/lg_4442495979_1780251048_3545746.jpg?v=1789518295","url":"https:\/\/divearizona.com\/products\/tdi-advanced-nitrox-deco-procedures-course","provider":"Dive Arizona","version":"1.0","type":"link"}