(SafeAir & Technical Instructor Training Programs)

Standards	LSI L1	CSI L2	TSI L3	ERI L4	TMI L5
Max. Course Depth	30 m	40 m	50 m	50 m	100 m
Min. Course Depth	10 m	10 m	40 m	40 m	60 m
Max Deco	N/A	N/A	30 min	as req'd	as req'd
Max PO₂ Deco	N/A	N/A	1.6 PO₂	1.6 PO₂	1.6 PO₂
Gas Limits - O₂	dives waived	dives waived	1.45 PO₂	1.45 PO₂	1.45 PO₂
Gas Limits - N₂	dives waived	dives waived	4.5 PN₂	4.5 PN₂	4.5 PN₂
Theory Time	10 Hrs incl exams& evaluation	16 Hrs incl exams& evaluation	8 Hrs incl exams& evaluation	8 Hrs incl exams& evaluation	8 Hrs incl exams& evaluation
# of OW Dives	dives waived for this rating		4*	4*	4*
Min. Bottom Time	N/A		120 min	150 min	80 min
Min. Run Time	N/A		180 min	240 min	240 min
Prerequisites²	CSU + AI or equivalent	CSU + OWI or equivalent	TSD+CSI + 100 dives + 10 deeper than 30m	ERD+TSI +150 dives +50 deco dives + 6 TSD courses	TMD+ERI +300 dives +100 deco dives + 6 ERD courses

* - see the diver rating for the specific procedures for the dives ......
2 - other prerequisites may apply as per the conducting IT. The bottom times listed are considered minimums.