{"product_id":"tdi-deco-procedures","title":"TDI Decompression 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 · Planned Staged Deco to 150 ft · For Experienced Divers\u003c\/p\u003e\n\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;\"\u003eDive past the recreational ceiling.\u003c\/strong\u003e Decompression Procedures certifies you to plan and execute staged decompression dives to 150 feet, where you run a planned series of ascent stops instead of surfacing directly. You'll learn to build the ascent, stop depths, times, gases, and contingencies, and to switch between back gas and dedicated deco gases in the water. It's a serious technical certification, and for most divers it's taught together with \u003ca class=\"link\" href=\"\/products\/tdi-advanced-nitrox\"\u003eAdvanced Nitrox\u003c\/a\u003e, the two were designed as a pair. You'll need your own mask, fins, boots, and snorkel; stage cylinders, deco regulators, a BCD, and tanks are available to rent from us or bring your own.\u003c\/p\u003e\n\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 Decompression Procedures Course\u003c\/h2\u003e\n\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 · Planned Staged Deco to 150 ft\u003c\/div\u003e\n\n\u003cp style=\"max-width:900px;margin:0 auto;font-size:25px;color:#3d4756;\"\u003eDecompression Procedures moves you past the recreational no-decompression ceiling. You'll plan and run staged decompression dives to 150 feet, working planned ascent stops, then prove it on open water dives with real decompression objectives. Pairs with \u003ca href=\"\/products\/tdi-advanced-nitrox\" style=\"color:#3f7fa6;font-weight:700;text-decoration:none;\"\u003eAdvanced Nitrox\u003c\/a\u003e, which supplies the high-oxygen gases that make it possible.\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\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\t\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\t\u003cli style=\"margin-bottom:12px;font-size:23px;\"\u003eBuild a full decompression plan: stop depths, stop times, ascent gas, gas selection\u003c\/li\u003e\n\t\u003cli style=\"margin-bottom:12px;font-size:23px;\"\u003eCarry a contingency plan for omitted decompression\u003c\/li\u003e\n\t\u003cli style=\"margin-bottom:12px;font-size:23px;\"\u003eQualify to move on to Extended Range, Advanced Wreck, and Trimix 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\n\u003cul style=\"margin:16px 0 0 22px;color:#3d4756;padding:0;\"\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eDecompression dive planning: stop depths, stop times, ascent gas\u003c\/li\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eGas selection and contingency planning for omitted decompression\u003c\/li\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eEquipment selection, cylinder labeling, gas analysis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\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\n\u003cul style=\"margin:16px 0 0 22px;color:#3d4756;padding:0;\"\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eGas switches at depth between back gas and deco gases\u003c\/li\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eSMB deployment, trim, and buoyancy while holding a stop\u003c\/li\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eResponding to 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;\"\u003eDesigned to pair with Advanced Nitrox\u003c\/h3\u003e\n\n\u003cp style=\"text-align:center;color:#3d4756;font-size:22px;margin:0 auto;max-width:860px;\"\u003eAdvanced Nitrox supplies the high-oxygen deco gases this course teaches you to plan and switch to. Most divers take the two together — ask us about the combined program.\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\n\u003cul style=\"margin:16px 0 0 22px;color:#3d4756;padding:0;\"\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eCertified \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;\"\u003eSDI Advanced Diver\u003c\/a\u003e, or equivalent\u003c\/li\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eProof of 25 logged open water dives\u003c\/li\u003e\n\t\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\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\n\u003cul style=\"margin:16px 0 0 22px;color:#3d4756;padding:0;\"\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eTDI Extended Range and Advanced Wreck\u003c\/li\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eTDI Trimix, for depths beyond air and nitrox\u003c\/li\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003ePairs 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\n\u003cul style=\"margin:0 0 0 22px;color:#3d4756;padding:0;\"\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eInstruction and your open water technical training dives\u003c\/li\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eTDI Decompression Procedures knowledge materials\u003c\/li\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eRental gear available: stage cylinders, deco regs, BCDs, tanks\u003c\/li\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eYour TDI certification on completion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\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\n\u003cul style=\"margin:0 0 0 22px;color:#3d4756;padding:0;\"\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003e\n\u003cstrong style=\"color:#14295f;\"\u003eYour own mask, fins, boots, 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\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003e\n\u003cstrong style=\"color:#14295f;\"\u003eStage cylinders, deco regs, BCD, tanks\u003c\/strong\u003e (rentable)\u003c\/li\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eAdvanced Adventure\/Diver card and dive log proof\u003c\/li\u003e\n\t\u003cli style=\"margin-bottom:11px;font-size:22px;\"\u003eA swimsuit and a towel\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\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;\"\u003eWhat does this course certify me to do?\u003c\/summary\u003e\n\n\u003cdiv style=\"padding:0 26px 22px;color:#3d4756;font-size:22px;\"\u003ePlan and execute staged decompression dives to 150 feet, running planned ascent stops instead of surfacing directly.\u003c\/div\u003e\n\u003c\/details\u003e\n\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;\"\u003eShould I take this with Advanced Nitrox?\u003c\/summary\u003e\n\n\u003cdiv style=\"padding:0 26px 22px;color:#3d4756;font-size:22px;\"\u003eMost divers do — it supplies the deco gases you'll learn to use. Call us to set up the combined program.\u003c\/div\u003e\n\u003c\/details\u003e\n\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\n\u003cdiv style=\"padding:0 26px 22px;color:#3d4756;font-size:22px;\"\u003eCertified SDI Advanced Adventure or Advanced Diver (or equivalent), 25 logged dives, minimum age 18.\u003c\/div\u003e\n\u003c\/details\u003e\n\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\n\u003cdiv style=\"padding:0 26px 22px;color:#3d4756;font-size:22px;\"\u003eStaged decompression dives here go to a maximum depth of 150 feet.\u003c\/div\u003e\n\u003c\/details\u003e\n\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 gear do I need?\u003c\/summary\u003e\n\n\u003cdiv style=\"padding:0 26px 22px;color:#3d4756;font-size:22px;\"\u003eYour own mask, fins, boots, snorkel, plus stage cylinders, deco regs, a BCD, and tanks — all rentable.\u003c\/div\u003e\n\u003c\/details\u003e\n\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 comes after this course?\u003c\/summary\u003e\n\n\u003cdiv style=\"padding:0 26px 22px;color:#3d4756;font-size:22px;\"\u003eTDI Extended Range, Advanced Wreck, and Trimix — the deeper technical track.\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\n\u003cp style=\"color:#fff;font-size:25px;max-width:700px;margin:0 auto 28px;\"\u003eReady to plan your first staged decompression dive? Call the shop and we'll map it out.\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;\"\u003eA technical certification for staged decompression diving to 150 feet. Prerequisites: certified SDI Advanced Adventure or Advanced Diver (or equivalent), 25 logged dives, minimum age 18.\u003c\/p\u003e\n\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":52879184920807,"sku":"CLASS-46345c47-0d31-59a7-8263-573749e6b67f","price":799.0,"currency_code":"USD","in_stock":true},{"title":"I will pick a date later","offer_id":52640428097767,"sku":"tdi-deco-procedures","price":799.0,"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-deco-procedures","provider":"Dive Arizona","version":"1.0","type":"link"}