Advanced Mixed Gas CCR
The most advanced closed-circuit rebreather certification in TDI's progression, extending mixed-gas CCR diving to 100m/330ft. It's for divers who've built real time on the Mixed Gas CCR course and want to push the unit to its deepest technical range, combining hypoxic trimix gas planning with rebreather-specific bailout procedures. It's the final rung on TDI's CCR ladder — there's no further depth-tier CCR course beyond it. Taught entirely on the specific rebreather unit, in open water, with substantial logged time on that unit required before enrolling.
Centres that teach this course
6 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.
- €1,950total
- €1,600total
- €1,850total
- IDR 30,000,000total
- IDR 35,000,000total
- THB 72,500total
Same training under a different agency
6 centres
A separate set of centres, teaching CCR Hypoxic / Advanced Mixed Gas / MOD 3 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.
- €1,850total
- €1,600total
- €1,600total
- €1,600total
- IDR 29,700,000total
- IDR 29,700,000total
Charged by the day or dive rather than as a course price:
- Third Dimension DivingMexicoFATHOM Dive Systems CCR (MKV/GEMINI) MOD 3 (Hypoxic Trimix)IANTD$330/day→ $1,320 for the 4-day minimum$330per day
- THB 50,000total
Same tier, agency not stated
2 centres
These centres publish a price for CCR Hypoxic / Advanced Mixed Gas / MOD 3, 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.
- $2,400total
- £1,100total
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 Mixed Gas CCR Diver, minimum 100 rebreather hours over 100 dives (at least 50 hours/50 dives on the specific unit), with at least 30 dives deeper than 30m/100ft and 10 mixed-gas CCR dives deeper than 50m/165ft, minimum age 18.
Standards
What a diver must demonstrate to pass this course — not always published by the certifying agency.
Instructor trainer competencies: unit-specific emergency procedures, hypoxic gas management instruction, multi-stage decompression teaching, student assessment at extreme depths, risk management for deep rebreather operations
Instructors Teaching This Course
United States
Mexico
Thailand
Dive Centres Offering This Course
United States
Egypt
Thailand
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 Advanced Mixed Gas CCR
How much does TDI Advanced Mixed Gas CCR cost?
Published prices for TDI Advanced Mixed Gas CCR range across 6 centres in the TecDiveTools directory — roughly US$1,650 to US$2,200 at current exchange rates. In each centre's own currency: €1,600–€1,950 (3 centres), IDR 30,000,000–35,000,000 (2 centres) and THB 72,500 (1 centre). 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 Advanced Mixed Gas CCR take?
5 days, based on the durations 1 centre publishes 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 Advanced Mixed Gas CCR?
TDI's standards require: TDI Mixed Gas CCR Diver, minimum 100 rebreather hours over 100 dives (at least 50 hours/50 dives on the specific unit), with at least 30 dives deeper than 30m/100ft and 10 mixed-gas CCR dives deeper than 50m/165ft, minimum age 18.
What is the minimum age for TDI Advanced Mixed Gas CCR?
TDI's standards state: Minimum age 18.
How many dives do I need before starting TDI Advanced Mixed Gas CCR?
TDI's standards state: Minimum 100 rebreather hours over 100 dives (at least 50 hours/50 dives on the specific unit).
What does TDI Advanced Mixed Gas CCR training involve?
According to TDI's published standards: Instructor trainer competencies: unit-specific emergency procedures, hypoxic gas management instruction, multi-stage decompression teaching, student assessment at extreme depths, risk management for deep rebreather operations.
What is the equivalent of TDI Advanced Mixed Gas CCR in other agencies?
At the same tier in TecDiveTools' cross-agency comparison: RAID 80/100m (260/330ft) CCR Course, SSI XR CCR Hypoxic Trimix, ANDI CCR Level 5 Hypoxic Trimix, IANTD CCR Trimix Diver and PADI TecRec Tec 100 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.
Where can I take TDI Advanced Mixed Gas CCR?
27 dive centres and 35 instructors in the TecDiveTools directory teach TDI Advanced Mixed Gas CCR across 7 countries, most in the United States, Egypt, Indonesia and Malta. Each is listed further up this page.
Does the price of TDI Advanced Mixed Gas CCR 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.