| Advanced Nitrox | OLI_DTCT_ADVNITROX | 10 |
| Advanced Open Water | OLI_DTCT_ADVOPEN | 2 |
| Advanced Rebreather Diver | OLI_DTCT_ADVCCR | 11 |
| Advanced Trimix | OLI_DTCT_ADVTRIMIX | 104 |
| Adventure Diver | OLI_DTCT_ADVENTURE | 12 |
| Altitude Diver | OLI_DTCT_ALTITUDE | 13 |
| Assistant Instructor | OLI_DTCT_ASSTINST | 6 |
| Basic Open Water | OLI_DTCT_BASICOPEN | 1 |
| Boat Diver | OLI_DTCT_BOAT | 14 |
| Cave Diver | OLI_DTCT_CAVE | 15 |
| Cavern Diver | OLI_DTCT_CAVERN | 16 |
| CCR / Rebreather Diver | OLI_DTCT_CCRREBREATHER | 105 |
| Decompression Techniques / Deco Procedures | OLI_DTCT_TECHDECO | 100 |
| Deep Diver | OLI_DTCT_DEEP | 17 |
| Discover CCR/Rebreather | OLI_DTCT_CCRDISCOVER | 18 |
| DiveMaster | OLI_DTCT_DIVEMASTER | 7 |
| Diver Propulsion Vehicle Diver | OLI_DTCT_PROPULSION | 19 |
| Drift Diver | OLI_DTCT_DRIFT | 20 |
| Dry Suit Diver | OLI_DTCT_DRYSUIT | 21 |
| Emergency First Responder | OLI_DTCT_EMERGFIRST | 22 |
| Emergency Oxygen Provider | OLI_DTCT_EMERGO2 | 23 |
| Enriched Air / Nitrox Diver | OLI_DTCT_NITROX | 3 |
| Extended Range | OLI_DTCT_EXTRANGE | 103 |
| HELIOX/Helitrox | OLI_DTCT_HELIOX | 101 |
| Ice Diver | OLI_DTCT_ICE | 24 |
| Master Instructor Rating | OLI_DTCT_MASTERINST | 904 |
| Master Scuba Diver | OLI_DTCT_MASTERDIVER | 5 |
| Master Scuba Diver Trainer | OLI_DTCT_MSTRDIVERINST | 903 |
| MultiLevel Diver | OLI_DTCT_MULTILEVEL | 25 |
| Night Diver | OLI_DTCT_NIGHT | 26 |
| Open Water Instructor | OLI_DTCT_OPENINST | 900 |
| Other | OLI_OTHER | 2147483647 |
| Peak Performance Buoyancy | OLI_DTCT_BOUYANCY | 27 |
| Project Aware Specialist / Underwater Ecologist | OLI_DTCT_ECOLOGY | 28 |
| Public Safety Diver | OLI_DTCT_SAFETYDIVER | 29 |
| Rescue Dive | OLI_DTCT_RESCUE | 4 |
| Search and Recovery Diver | OLI_DTCT_SEARCHRECOVER | 30 |
| Sidemount Diver | OLI_DTCT_SIDEMOUNT | 31 |
| Skin Diver Instructor | OLI_DTCT_SKININST | 901 |
| Specialty Instructor | OLI_DTCT_SPECIALTYINST | 902 |
| Tec 100 CCR | OLI_DTCT_TEC100CCR | 114 |
| Tec 100 CCR Instructor | OLI_DTCT_TEC100CCRINST | 911 |
| Tec 40 | OLI_DTCT_TEC40 | 106 |
| Tec 40 CCR | OLI_DTCT_TEC40CCR | 112 |
| Tec 40 CCR Instructor | OLI_DTCT_TEC40CCRINST | 909 |
| Tec 45 | OLI_DTCT_TEC45 | 107 |
| Tec 50 | OLI_DTCT_TEC50 | 108 |
| Tec 60 CCR | OLI_DTCT_TEC60CCR | 113 |
| Tec 60 CCR Instructor | OLI_DTCT_TEC60CCRINST | 910 |
| Tec Deep instructor | OLI_DTCT_TECDEEPINST | 906 |
| Tec Glas Blender | OLI_DTCT_TECBLENDER | 111 |
| Technical EAN Diver | OLI_DTCT_TECHEAN | 38 |
| Technical Support Leader | OLI_DTCT_TECHSUPPORTLEAD | 37 |
| Tec Instructor | OLI_DTCT_TECINST | 905 |
| Tec Sidemount | OLI_DTCT_TECSIDEMOUNT | 115 |
| Tec Sidemount instructor | OLI_DTCT_TECSIDEINST | 908 |
| Tec Trimix 65 | OLI_DTCT_TECTRI65 | 109 |
| Tec Trimix Diver | OLI_DTCT_TECTRI | 110 |
| Tec TriMix Instructor | OLI_DTCT_TECTRIINST | 907 |
| Trimix Diver | OLI_DTCT_TRIMIX | 102 |
| Underwater Archeologist | OLI_DTCT_ARCHEOLOGY | 32 |
| Underwater Navigator | OLI_DTCT_NAVIGATION | 33 |
| Underwater Photography | OLI_DTCT_PHOTO | 34 |
| Unknown | OLI_UNKNOWN | 0 |
| Wreck Diver | OLI_DTCT_WRECK | 35 |
| Wreck Diver - Advanced | OLI_DTCT_ADVWRECK | 36 |