ANDI Level 2
SafeAir Wreck Diver
The ANDI SafeAir Wreck Diver can dive using any SafeAir mixture and using any approved ANDI application within the training limitations in an open-water wreck diving environment. Limited penetration is permitted.
The maximum depth approved for the ANDI SafeAir Wreck Diver is 30 msw (100 fsw ). This is a Level 2 program following the scope of this training. For all dives conducted as part of this training program 1.45 Bar / ata PO2 will be considered the bottom mix limit with the maximum exposure to Oxygen for at-rest / light work activities is 1.6 Bar / ata PO2. Penetration is permitted within the light zone only and in clear view of an unobstructed exit point.
ANDI Level 3
Technical Wreck Diver 
Full PENETRATION, engine rooms, boiler rooms. Learn to penetrate into the bellies of the ancient wrecks. We will teach you the proper procedures to be able to do FULL penetration into these wrecks SAFELY. We teach a combination of both Progressive familiarization and proper line laying.
Technical Wreck Diver L3 Limitations: May use all Nitrox and Oxygen mixtures to 40 m (130 fsw) performing decompression profiles limited to a max of 30 minutes deco-time, using 3 cylinders and 3 gases within a shipwreck environment. Wreck penetration limited to the rule of thirds is permitted.
CCR Technical Wreck Diver
The CCR Technical Wreck Diver Training course identifies the dangers and added risks, develops the skills, tasks loading, problem solving, knowledge, and the ability to safely dive in a shipwreck-overhead environment within the limits of the ANDI standards set forth for this rating.
Limitations: The maximum allowable depth for the ANDI CCR Technical Wreck Diver is 40msw (approx 130 fsw ). The maximum exposure to Oxygen, approved for normal dive (no modifiers) profiles is 1.45 BAR PO2 with 1.6 being the maximum for at-rest decompression.The maximum exposure to Nitrogen is 3.6 BAR PN2 (3.6 ata). For cold waters or low visibility ANDI does recommend a 3.2 BAR PN2 at the Instructors discression. Decompression has a maximum limit of 30 minutes per dive. Decompression obligations beyond these limits are outside of the scope of this training.
If the student is Technical Tri-mix CCR diver or higher certified a tri-mix diluent and off board bailout gas may be used. Technical Tri-mix Divers are limited to 50m/165fsw with a maximum decompression of 45 minutes per dive.
ANDI Level 4
Exploration Wreck Diver 
The Exploration Wreck Diver Training course identifies the dangers and added risks, develops the skills, tasks loading, problem solving, knowledge, and the ability to more safely dive in a shipwreck-overhead environment within the limits of the ANDI standards set forth for this rating.
Exploration Wreck Diver L4 Limitations –
The maximum allowable depth for the ANDI Level 4 Extended Range Diver is 40 msw (approx 130 fsw). The maximum depth limit of the ANDI Level 4 Intermediate Tri-mix Exploration Wreck divers is 60m/200 fsw. The maximum exposure to Oxygen, approved for normal dive (no modifiers) profiles is 1.45 BAR PO2 with 1.6 being the maximum for at-rest decompression. The maximum exposure to Nitrogen is 3.6 BAR PN2 (3.6 ata) for ERD divers and 3.2 BAR PN2 for ITM divers.. The number of tanks, decompression and penetration for this level are unlimited.
CCR Intermediate Tri-mix Exploration Wreck Diver
The Closed Circuit Rebreather Exploration Wreck Diver Training course identifies the dangers and added risks, develops the skills, tasks loading, problem solving, knowledge, and the ability to more safely dive in a shipwreck-overhead environment within the limits of the ANDI standards set forth for this rating.
L4: Limitations:The maximum allowable depth for the ANDI CCR Intermediate Tri-mix Exploration Wreck Diver is 60 msw/200 feet during the training. The maxim um exposure to Oxygen, approved for normal dive (no modifiers) profiles is 1.45 BAR PO2 with 1.6 being the maximum for at-rest decompression. The maximum exposure to Nitrogen is 3.2 BAR PN2 (3.2 ata). Unlimited tanks, decompression obligations and penetration
ANDI Level 5
Tri-mix Wreck Explorer Diver 
The Tri-mix Wreck Explorer Diver Training course identifies the dangers and added risks, develops the skills, tasks loading, problem solving, knowledge, and the ability to more safely dive in a shipwreck-overhead environment within the limits of the ANDI standards set forth for this rating. The ANDI Tri-mix Wreck Explorer course in no way is intended to provide instruction for cave diving.
Tri-mix Wreck Explorer L5 Limitations- The maximum allowable depth for the ANDI Tri-mix Wreck Explorer Diver is 80 msw (approx 265fsw). The maximum exposure to Oxygen, approved for normal dive (no modifiers) profiles is 1.45 BAR PO2 with 1.6 being the maximum for at-rest decompression. The maximum exposure to Nitrogen is 3.2 BAR PN2 (3.2ata). The number of tanks, decompression and penetration for this level are unlimited.
CCR Tri-mix Wreck Explorer 
The Closed Circuit Rebreather Tri-mix Wreck Explorer course identifies the dangers and added risks, develops the skills, tasks loading, problem solving, knowledge, and the ability to more safely dive in a deep shipwreck-overhead environment within the limits of the ANDI standards set forth for this rating.
L5 Limitations: The maximum allowable depth for the ANDI Closed Circuit Rebreather Tri-mix Wreck Explorer is 80 msw/265 feet during the training. The maximum exposure to Oxygen, approved for normal dive (no modifiers) profiles is 1.45 BAR PO2 with 1.6 being the maximum for at-rest decompression.The maximum exposure to Nitrogen is 3.2 BAR PN2 (3.2 ata). Unlimited Tanks, Decompression obligations and penetration.