Helitrox CCR Decompression Procedures
Extends Helitrox CCR diving into staged decompression using helium-diluted mix (up to 35% helium, up to 100% oxygen for decompression) to 45m/150ft. Teaches decompression gas planning and bailout procedures specific to helium-diluent rebreathers alongside core CCR decompression skills. Designed for divers on TDI's advanced mixed-gas CCR track seeking to extend Helitrox diving into mandatory-stop territory. Prerequisite requires at least 5 logged staged decompression dives to 30m/100ft.
Centres that teach this course
5 dive centres in the directory publish a price for this exact certification, checked Sep 2026. Each centre's own wording is shown beneath its name. Ranges cover whole-course prices only — where a centre charges per day or per dive, its rate is listed separately below, since a daily figure is not comparable with a course total.
- €1,800total
- Dive Systems MaltaMaltaTDI CCR Level 1: Air Diluent Deco Diver or Helitrox Diverone price, several agencies€1,400total
Charged by the day or dive rather than as a course price:
- $425per day
- IDR 25,200,000total
- THB 66,900total
Same training under a different agency
6 centres
A separate set of centres, teaching CCR Helitrox / ART under a different agency. These are not the same certification — the standards and the card differ — but they cover the same depth and scope, which is why centres price them alike. Every row here names whose rating it is, and none of them is counted above.
- IDR 29,700,000total
- IDR 29,700,000total
- IDR 29,700,000total
- IDR 24,900,000total
- THB 37,500total
- THB 60,000total
- THB 70,000total
- €1,500total
- €1,200total
- €1,200total
Same tier, agency not stated
2 centres
These centres publish a price for CCR Helitrox / ART, but their own wording does not say which agency's certification it buys — many teach several and name the card only once you enquire, and some price one course for either agency. The figure is comparable; the certification is not identified, so we do not guess at one.
- £1,600total
- IDR 29,700,000total
These prices are not like-for-like. Two centres can charge very differently for the same certification because they include different things. One price may cover twinsets, stages, deco gas and cylinder rental for every training dive, a dedicated classroom for the theory, boat or transport to the site, and the agency's registration and materials; another may be tuition only, with all of that charged separately — or the other way round, with a centre bundling in extras the first leaves out. Class size, whether the course is one-to-one, and how many days are allowed for it move the figure too. Check what each centre's price includes before comparing them, and confirm with the centre before booking.
Consumables are usually extra. Sorb, helium, O₂ and other fills, park and cenote fees, certification fees and rental are commonly charged on top.
Packages combining several certifications, upgrades from an existing one, and open-ended day rates are excluded — none of them is the standalone price of this course, and including them would move the figures away from what a new student can actually book.
Prerequisites
TDI Advanced Nitrox, Decompression Procedures, or Helitrox Diver certification (or Air Diluent CCR Diver with 30 hours/30 dives on the specific unit for crossover); minimum 50 logged dives with 5 decompression dives to 30m/100ft or deeper; minimum age 18.
Standards
What a diver must demonstrate to pass this course — not always published by the certifying agency.
Divers must perform decompression-specific drills, demonstrate helium-decompression gas planning, execute emergency procedures, manage deco obligations, and maintain buoyancy/trim in staged decompression dives to 30m minimum depth.
Instructors Teaching This Course
United States
Egypt
Thailand
Indonesia
Mexico
Dive Centres Offering This Course
United States
Thailand
Egypt
Mexico
Malta
We're still building out the directory country by country, so this list isn't every instructor or dive centre teaching it in the world — more locations are coming soon.
Common questions about TDI Helitrox CCR Decompression Procedures
How much does TDI Helitrox CCR Decompression Procedures cost?
Published prices for TDI Helitrox CCR Decompression Procedures range across 4 centres in the TecDiveTools directory — roughly US$1,400 to US$2,050 at current exchange rates. In each centre's own currency: €1,400–€1,800 (2 centres), IDR 25,200,000 (1 centre) and THB 66,900 (1 centre). 1 centre charges by the day instead, which is not comparable with a course total. Prices differ mainly in what they include, so compare the inclusions before comparing the numbers. Prices were last checked in September 2026.
How long does TDI Helitrox CCR Decompression Procedures take?
Between 3 and 7 days, based on the durations 2 centres publish for it. The time depends on the centre's schedule, weather, and how quickly the required skills are demonstrated — agencies set a minimum number of dives, not a fixed number of days.
What are the prerequisites for TDI Helitrox CCR Decompression Procedures?
TDI's standards require: TDI Advanced Nitrox, Decompression Procedures, or Helitrox Diver certification (or Air Diluent CCR Diver with 30 hours/30 dives on the specific unit for crossover); minimum 50 logged dives with 5 decompression dives to 30m/100ft or deeper; minimum age 18.
What is the minimum age for TDI Helitrox CCR Decompression Procedures?
TDI's standards state: Minimum age 18.
How many dives do I need before starting TDI Helitrox CCR Decompression Procedures?
TDI's standards state: Decompression Procedures, or Helitrox Diver certification (or Air Diluent CCR Diver with 30 hours/30 dives on the specific unit for crossover).
What does TDI Helitrox CCR Decompression Procedures training involve?
According to TDI's published standards: Divers must perform decompression-specific drills, demonstrate helium-decompression gas planning, execute emergency procedures, manage deco obligations, and maintain buoyancy/trim in staged decompression dives to 30m minimum depth.
What is the equivalent of TDI Helitrox CCR Decompression Procedures in other agencies?
At the same tier in TecDiveTools' cross-agency comparison: IANTD CCR Advanced Recreational Trimix Diver and SSI XR CCR Extended Range Trimix. They cover comparable training, but each agency sets its own standards, depth limits and certification card, so they are comparable rather than interchangeable — check which one your next course accepts.
Where can I take TDI Helitrox CCR Decompression Procedures?
54 dive centres and 76 instructors in the TecDiveTools directory teach TDI Helitrox CCR Decompression Procedures across 7 countries, most in the United States, Thailand, Egypt and Indonesia. Each is listed further up this page.
Does the price of TDI Helitrox CCR Decompression Procedures include gas and equipment?
Not always — it varies by centre. Helium, sorbent and oxygen, certification fees, equipment rental and boat or site fees are commonly charged on top of the course price. Each centre's price list on TecDiveTools shows what it notes as included.