(Technical Training Programs)

Standard	Technical SafeAir Diver TSD L3	Technical Tri-Mix Diver TTM L3	Extended Range Diver ERD L4	Intermediate Tri-Mix Diver ITM L5	Tri-Mix Diver TMD L5
Maximum Course Depth ¹	50m (49.5m)	50 m	50m (49.5m)	60 m	100 m
Minimum Course Depth ²	30 m	40 m	40 m	50 m	60 m
Min. Dive Depth for Certification Credit ³	21 m	30 m	30 m	40 m	50 m
Max. Deco Run-time ⁴	30 min	45 min	As Required	As Required	As Required
Max. PO₂ for Deco	1.6 PO₂	1.6 PO₂	1.6 PO₂	1.6 PO₂	1.6 PO₂
Bottom Gas Limits - O₂	1.45 PO₂	1.45 PO₂	1.45 PO₂	1.45 PO₂	1.45 PO₂
Bottom Gas Limits - N₂	4.5 PN₂	3.2 PN₂	4.5 PN₂	3.6 PN₂	4.0 PN₂
Bottom Gas Limits - Helium	none	16% or more	none	16% or more	As Required
Theory Time	14 - 16 Hrs	4-6 Hrs ⁵	6 - 8 Hrs	5 - 7 Hrs ⁵	5 - 7 Hrs
# of Dives	4*	4 *	4*	4*	4*
Min. Bottom Time	80 min	100 min	120 min	75 min	75 min
Min. Run Time	120 min	180 min	240 min	240 min	240 min
Equipment configuration limitations	3 cylinders 3 gases	3 cylinders 2 gases	As Required	As Required	As Required
Prerequisites ⁶	CSU +50 dives	TSD	TSD +100 dives	ERD +200 dives	ERD +200 dives

1 - The deepest dive permitted during training.
2 - At least one training dive must meet this minimum.
3 -Other than the first evaluation dive no shallower dive may be credited toward certification.
4 -One deco cylinder must cover all stops and bailout.
5 - Includes all TMD info from L5 course.
6 - Other prereq's may appl at instructor discretion
* - see the instructor procedures for the specifics for the dives .....
7- The cost of the water fees not included, i.e. Quarry entrance fee, Boat ticket, beach pass etc.
+ The cost of the gas & water fees are not included, i.e. quarry entrance fee, boat ticket or beach pass
Note that divers may only move 2 levels during one course series . In order to move 3 levels the candidate must have 25 dives at the ERD level.