Mixed-Gas Diver
Credential: Mixed-Gas Diver
Credentialing Agency: Association of Diving Contractors International (ADCI)
Renewal Period: 5 years
The Mixed Gas Diver certification is recommended for intermediate-level commercial divers. Applicants must have achieved the ADCI Entry Level Tender/Diver, and ADCI Air Diver certifications prior to pursuing the Mixed Gas Diver credential. In addition to the expectations of the earlier level divers, Mixed Gas Divers accomplish all tasks assigned by the diving supervisor; have adequate knowledge, training and familiarization with all life-support and equipment designated to the diving operations; read, understand and comply with all employer's policies and governmental regulations; ensure that the deepest depth attained during the dive has been established before the ascent; safely transition from the water to the decompression chamber without avoidable delay; plus other expectations. Mixed Gas Diver must meet training and experience requirements as well.
More information can be found on the certifying agency's website.
Mixed-Gas Diver
MINIMUM REQUIREMENTS
Attainability:
Eligibility Requirements (View Details)
- Credential Prerequisite
- Experience: 150 days
- Education: High School Diploma/GED
- Training
- Membership
- Other
- Fee
Note: This credential may have multiple options for a Service member to meet eligibility requirements. Requirements listed here are based on the minimum degree required. To view other options, see the Eligibility tab.
Exam Requirements (View Details)
- Exam
- Written Exam
- Oral Exam
- Practical Exam
- Performance Assessment
Exam Administration (View Details)
- In-person exam
- Remote proctored on-line exam
- Third-party test vendor
RECERTIFICATION SUMMARY
Renewal Period: 5 years
AGENCY CONTACT INFORMATION
Association of Diving Contractors International (ADCI)
5206 Cypress Creek Parkway
Suite 202
Houston, TX 77069
Phone: (281) 893-8388
Fax: (281) 893-5118
Email: nancy@adc-int.org
Credential Pre-requisite REQUIREMENTS
Applicant must have earned both the ADCI Entry Level Tender/ Diver and the ADCI Air Diver certifications.
Education REQUIREMENTS
Applicant must have a high school diploma or equivalent.
Experience REQUIREMENTS
Applicant must have completed at least:
- 100 field days as an air diver
- 50 working dives as an air diver.
- 50 field days participating in surface mixed-gas diving operations during which they performed at least 10 working mixed-gas dives.
For details on this requirement see the ADCI Consensus Standards, Section 3.5.
Other REQUIREMENTS
The Mixed-Gas Diver credential has the following other requirements:
- Be at least 18 years old.
- Applicant must have a valid Red Cross certification in First Aid and CPR.
- Meet comprehensive ADCI Medical Requirements. For further information visit ADCI Consensus Standards Medical Requirements Sections 2.3-4.
- Submit documentation of course completion along with copies of diving logs with the application. Diving proficiency establishes the required minimum number of open-water working dives required to obtain various designations. All dives must be performed during a 24-month period immediately prior to issuance of the designation. Work must be performed during each dive with proper supervision. All dives must have a minimum of 20 minutes bottom time. A number of shorter-duration dives may be combined to equal one dive of the required 20-minute bottom time.
Written Exam
- Have adequate knowledge, training and familiarization with all life-support and ancillary equipment designated to the diving operations.
- Read, understand and comply with all employer’s policies and applicable governmental regulations, as they relate to qualifications or performance while engaging in diving operations.
- Maintain a high level of physical fitness.
- Comply with all commands or instructions from the diving supervisor or designated diving person in charge (DPIC) during the conduct of diving operations.
- Ensure that the deepest depth attained during the dive has been established before the ascent.
- Safely transition from the water to the decompression chamber without avoidable delay.
- Act as a standby diver when directed to do so. Be capable and qualified to carry out all of the duties and responsibilities of the diver as set forth above. (The standby diver is the individual possessing the required training and experience to enter the water at the diving station in order to render assistance to a stricken diver).
- Act as a chamber operator as required by the diving supervisor.
- Comply with regulations or instructions concerning the use, maintenance, repair and testing of all diving equipment provided for the operation.
- Report to the diving supervisor any recent medical treatment or illness so that a proper determination can be made concerning fitness and/or ability to dive.
- Immediately report all symptoms or suspected symptoms of DCS to the diving supervisor as early and accurately as possible.
- Report to the diving supervisor any defect or malfunction of the diving equipment provided for the diving operation.
- Follow safe diving practices at all times during the diving operation whether on deck or in the water. Bring to the attention of the diving supervisor any questionable items. Be alert for the safety of others as well as himself or herself.
- Assist in the training of new personnel or tender/divers.
- Remain awake and in the vicinity of the decompression chamber for at least one hour following treatment or a hyperbaric exposure outside the no-decompression limits.
- Know and observe the rules for flying after diving or traveling to altitudes higher than the dive site.
- Ensure that the diving equipment has been correctly maintained, prepared and tested before each dive. This requirement should never be delegated to others.
Exam Preparation Resources
There are a number of resources available to help you prepare for the Mixed-Gas Diver examination:
- Best Sources
- General References
An additional resource is O'Reilly Learning Safari Books Online, a searchable digital library that provides online access to thousands of books, training videos and conference sessions. See the Educational Resources section on the Related Sites page here on COOL to learn how to get free access.
Testing Information
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Exam Administration
Credential exams may be administered in-person at a testing site, proctored on-line remotely, or have options for both. If an exam is administered through a test vendor, the third-party test vendor box will be checked. The following test administration options apply to the Mixed-Gas Diver credential where checked:
- In-person exam
- Remote proctored on-line exam
- Third-party test vendor
For more information on the Association of Diving Contractors International (ADCI) testing process, visit the agency website.
RECERTIFICATION
Mixed-Gas Diver
Renewal Period: 5 years