CCR Normoxic Trimix Diver
This technical rebreather course teaches CCR-qualified divers to deploy normoxic trimix on closed-circuit rebreathers, maintaining constant oxygen partial pressure for optimal efficiency at technical depths. The course covers oxygen cell management, constant-PO2 loop operation, and stage management for technical dives between 130–200 fsw (39–60 msw), forming a foundation for full technical CCR progression.
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.
- €1,750total
- €1,300total
Charged by the day or dive rather than as a course price:
- Third Dimension DivingMexicoFATHOM Dive Systems CCR (MKV/GEMINI) MOD 2 (Normoxic Trimix)$330/day→ $1,320 for the 4-day minimum$330per day
- IDR 29,700,000total
- THB 60,000total
Same training under a different agency
11 centres
A separate set of centres, teaching CCR Normoxic / Mixed Gas / MOD 2 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 31,500,000total
- IDR 26,200,000total
- IDR 26,000,000total
- €1,800total
- €1,350total
- €1,300total
- €1,600total
- €1,300total
- THB 75,000total
- THB 70,000total
- THB 40,000total
Charged by the day or dive rather than as a course price:
- $425per day
Same tier, agency not stated
5 centres
These centres publish a price for CCR Normoxic / Mixed Gas / MOD 2, 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.
- $1,950total
- $2,000total
Charged by the day or dive rather than as a course price:
- Protec MexicoMexicoCCR Normoxic Trimix1 student$470/day→ $2,820 for the 6-day minimum2+ students$420/day→ $2,520 for the 6-day minimum each$470per day
- £950total
- THB 54,900total
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
IANTD Rebreather Diver + 50 logged rebreather dives with 50 hours underwater time + at least 25 logged dives and 25 hours on specific rebreather unit + at least 10 logged dives to minimum 100 fsw (30 msw) requiring staged decompression, minimum 18 years old.
Standards
What a diver must demonstrate to pass this course — not always published by the certifying agency.
Demonstrate mastery of oxygen cell management, constant-PO2 loop operation at technical depths, stage management for normoxic trimix transitions, and comprehensive emergency protocols.
Instructors Teaching This Course
United States
Mexico
Indonesia
Other locations
Dive Centres Offering This Course
United States
Indonesia
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 IANTD CCR Normoxic Trimix Diver
How much does IANTD CCR Normoxic Trimix Diver cost?
Published prices for IANTD CCR Normoxic Trimix Diver range across 4 centres in the TecDiveTools directory — roughly US$1,450 to US$2,000 at current exchange rates. In each centre's own currency: €1,300–€1,750 (2 centres), IDR 29,700,000 (1 centre) and THB 60,000 (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 IANTD CCR Normoxic Trimix Diver take?
Between 4 and 6 days, based on the durations 3 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 IANTD CCR Normoxic Trimix Diver?
IANTD's standards require: IANTD Rebreather Diver + 50 logged rebreather dives with 50 hours underwater time + at least 25 logged dives and 25 hours on specific rebreather unit + at least 10 logged dives to minimum 100 fsw (30 msw) requiring staged decompression, minimum 18 years old.
What is the minimum age for IANTD CCR Normoxic Trimix Diver?
IANTD's standards state: Minimum 18 years old.
How many dives do I need before starting IANTD CCR Normoxic Trimix Diver?
IANTD's standards state: IANTD Rebreather Diver + 50 logged rebreather dives with 50 hours underwater time + at least 25 logged dives and 25 hours on specific rebreather unit + at least 10 logged dives to minimum 100 fsw (30 msw) requiring staged decompression.
What does IANTD CCR Normoxic Trimix Diver training involve?
According to IANTD's published standards: Demonstrate mastery of oxygen cell management, constant-PO2 loop operation at technical depths, stage management for normoxic trimix transitions, and comprehensive emergency protocols.
What is the equivalent of IANTD CCR Normoxic Trimix Diver in other agencies?
At the same tier in TecDiveTools' cross-agency comparison: RAID 60m (200ft) CCR Course, ANDI CCR Level 4 Normoxic Trimix, SSI XR CCR Technical Extended Range, TDI Mixed Gas CCR and PADI TecRec Tec 60 CCR. 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.
What course comes after IANTD CCR Normoxic Trimix Diver?
The next step in IANTD's progression is IANTD CCR Trimix Diver.
Where can I take IANTD CCR Normoxic Trimix Diver?
15 dive centres and 23 instructors in the TecDiveTools directory teach IANTD CCR Normoxic Trimix Diver, in the United States, Mexico, Thailand and Indonesia. Each is listed further up this page.
Does the price of IANTD CCR Normoxic Trimix Diver 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.