National Credential
Credential: Certified Hyperbaric Technologist (CHT)
Credentialing Agency: National Board of Diving and Hyperbaric Medical Technology

The Certified Hyperbaric Technologist (CHT) is a mid-level credential. Hyperbaric oxygen therapy is the medical procedure of introducing large amounts of oxygen, under extreme atmospheric pressure, into the bloodstream of those afflicted with a variety of medical conditions. Certified hyperbaric technologists, or technicians, may undergo training at a number of medical institutions. Eligibility for the CHT includes completion of an approved NBDHMT introductory course and other experiential requirements.

More information can be found on the certifying agency's website.

Renewal Period: 2 years

Certified Hyperbaric Technologist (CHT)

The following Army Occupations provide training and/or experience that contributes to attaining this credential:

Personnel Category Occupation Occupation Type Related As Promotion Points Skill Level Star Proponent Funded Gap Analysis
Enlisted 12D Diver MOS other          
Enlisted Q5 Special Forces Combat Diving, Medical ASI some          
Enlisted S6 Special Forces Combat Diving, Supervision ASI other          
Enlisted W7 Special Forces Underwater Operations ASI other          

Army Table Legend


Related As

The military occupations shown in this table are related to this credential in one of four ways: Most, Some, or Other.

Most: This credential is directly related to most of the major duties associated with the military occupation (at least 80%). Note that the credential may require additional education, training or experience before you are eligible for it.

Some: This credential is related to some tasks associated with the duties of the military occupation (related 80% to at least one or more critical tasks but less than 80% of all of the entire military occupation). Note that the credential may require additional education, training or experience before you are eligible for it.

Other: This credential is related to this military occupation, but is more advanced or specialized and therefore will likely require additional education, training, or experience.

Promotion Points Promotion Points icon

This credential has been approved for promotion points for this MOS towards promotion to Sergeant and Staff Sergeant. Clicking the Promotion Points icon will open a link to the promotion points fact sheet.

Skill Level Designation

Skill Level I: This skill level consists of all Soldiers in the ranks of Private (pay grade E-1) up to Specialist (pay grade E-4). Time in Service (TIS) is generally between initial entry and four Years of Service (YOS). This skill level is Entry-level positions requiring performance of tasks under direct supervision.

Institutional training:

  • Structured Self-Development (SSD) level I
  • Basic Leader Course (BLC)

Skill Level II: This skill level is obtained when promoted to Sergeant (paygrade E-5). TIS is generally between 4-8 YOS. Positions requiring performance of more difficult tasks under general supervision; and in some instances, involving supervision of Soldiers in SL1.

Institutional training:

  • Structured Self-Development (SSD) level II
  • Advance Leader Course (ALC)

Skill Level III: This skill level is obtained when promoted to Staff Sergeant (paygrade E-6). TIS is generally between 8-12 YOS. Positions requiring performance of still more difficult tasks and involving first line supervision of Soldiers in SL1 & SL2.

Institutional training:

  • Senior Leader Course (SLC)
  • Structured Self-Development (SSD) level III

Skill level IV: This skill level is obtained when promoted to the rank of Sergeant First Class (paygrade E-7). TIS is generally between 12-18 YOS. Positions requiring relatively detailed knowledge of all tasks specified for a given MOS, normally involving first-line supervision of Soldiers in SLs 1, 2, and 3, and involving managerial duties.

Institutional training:

  • Master Leader Course (MLC)
  • Structured Self-Development (SSD) level IV
  • Senior Enlisted Joint Professional Military Education (SEJPME) I Course

Skill level V: This skill level is obtained when promoted to the rank of Master Sergeant (paygrade E-8). TIS is generally between 18-22 YOS. Positions requiring direct and indirect leadership roles with expertise in company and battalion-level operations and competency across a given CMF, serving as members of a staff at every level in the Army, with a full understanding of the allocation of resources and their utilization in order to accomplish Army functions and missions.

Institutional training:

  • United States Army Sergeants Major Academy (USASMA)
  • Structured Self-Development (SSD) level V

Skill level VI: This skill level is obtained when promoted to the rank of Sergeants Major (paygrade E-9). TIS is generally between 22-30 YOS. Positions requiring organizational leadership roles with multi-dimensional expertise in units and teams on division, corps, and Army staffs, integrated with Joint, Interagency, Intergovernmental, and Multinational (JIIM) partners with a full understanding of the Force Generation process, operations at all echelons, and how the Army runs.

Star Credential Star icon

Star credentials are MOS enhancing, as designated by the Proponent. MOS enhancing credentials are directly related to an MOS or ASI, are taught either partially or completely as part of a Program of Instruction (POI), and improve the MOS technical proficiency.

Proponent Funded Funded icon

This icon indicates credentials which Soldiers may have funded through their MOS proponent. Some proponents offer credentialing opportunities in conjunction with military training and/or as part of MOS development beyond the training base.

Gap Analysis Has Analysis icon

A detailed analysis comparing the credential requirements to the military occupation has been completed. Click on the gap analysis icon to view the analysis page.

Certified Hyperbaric Technologist (CHT)

Eligibility Requirements ()

Note: This credential may have multiple options for becoming eligible. Listed below are the minimum requirements based on the minimum degree required. To view other options, see the Eligibility tab.

  • Credential Prerequisite
  • Experience: 480 hours
  • Education: High School Diploma/GED
  • Training
  • Membership
  • Other
  • Fee

Exam Requirements ()

  • Written Exam
  • Oral Exam
  • Practical Exam
  • Performance Assessment

Renewal Period: 2 years

  • Continuing Education
  • Exam
  • Continuing Education OR Exam
  • Fee
  • Other

National Board of Diving and Hyperbaric Medical Technology
9 Medical Park
Suite 330
Columbia, SC  29203
Phone: (803) 434-7802
Fax: (866) 451-7231
Email: nbdhmt@aol.com

Certified Hyperbaric Technologist (CHT)

You must meet all of the requirements:

  • You must have a high school diploma or equivalent.
  • You must have completed a National Board of Diving and Hyperbaric Medical Technology (NBDHMT) approved hyperbaric medicine introductory course.
  • You must maintain the training/education requirements of the original qualifying Vocation. For a list of qualifying vocations visit CHT Resource Manual.
  • As part of the clinical internship you must complete the Transcutaneous Oxygen Monitoring (TCOM) Module.
  • You must meet a minimum clinical internship of 480 hours of undersea, hyperbaric medicine or aviation medicine technology.
  • Military personnel must complete 1000 clinical hours in addition to required, approved, training received in the military (unless 480 hours of approved clinical internship can be completed at an approved facility).

The Certified Hyperbaric Technologist (CHT) credential has the following other requirements:

  • You must be 18 years of age.
  • Candidate must maintain and provide proof of prior training/certification/licensure in one of their original qualifying vocations. List of qualifying vocations can be obtained from CHT Resource Manual.
  • You must provide a letter of recommendation from present employer, administrator or medical director.
  • Criminal background check is required for all patient care providers in hospital settings.
  • Steps that the CHT candidate should take to complete the TCOM module before applying for certification:
    1. Read the learning objectives.
    2. Study the enclosed TcPO2 references.
    3. Study the operating manual of the TcPO2 monitor.
    4. Complete the TCOM module.
    5. Complete the TCOM module post-test.
    6. Attach to the CHT application: (1) a letter from the present employer, administrator, or medical director that certifies completion of the TCOM module; (2) a copy of the TCOM module post-test.

Certified Hyperbaric Technologist (CHT)

Note: Specific examination policies are left up to each instructor.

  • General Requirements
  • Gas Systems
  • Chamber Operations and Environment
  • Clinical Skills
  • Generalized Clinical Knowledge
  • Infection control measures

Note: Graduates of approved introductory training programs in hyperbaric technology are required to undergo a minimum clinical internship of 480 hours. Sixty (60) hours of the requirement should be a supervised clinical internship to complete eligibility requirements for certification examination. As part of the prescribed clinical internship, CHT applicants must complete the TCOM Module. Military personnel must complete 1000 clinical hours in addition to required, approved training received in the military (unless 480 hours of approved clinical internship can be completed at an approved facility)

  • Chamber Equipment:
    • Chamber Compression Gas
    • Breathing Gas Supply
    • Fire Extinguishing System
    • Communications
  • Chamber Operations:
    • Chamber Standard Operating Procedures
    • Chamber Emergency Operating Procedures
    • Checklists, Dive Tables And Treatment Protocols
    • Patient Treatment And Staff Dive Records
    • Support Equipment And Supplies
    • Patient Preparation, Loading And Unloading
  • Safety:
    • Fire Safety
    • Pressure Safety
  • Patient Assessment:
    • Initial Consultation
    • Ongoing Assessment
    • Follow-Up Assessment
  • Patient Care:
    • Patient Pre-Treatment Briefing
    • Barotrauma Management
    • Oxygen Toxicity Management
    • Hypoglycemia Management
    • Decompression Sickness Management
    • Pulmonary Barotrauma
    • Cardiopulmonary Complications
    • Infection Control
    • Patient Comfort
    • Wound Care
    • Documentation
  • Infection control measures
  • Transcutaneous Oxygen Monitoring Module (TCOM)

There are a number of resources available to help you prepare for the Certified Hyperbaric Technologist (CHT) examination:

An additional resource is Safari Books Online, a searchable digital library that provides online access to thousands of books, training videos and conference sessions. See the Educational Resources page here on COOL to learn how to get free access.

Certified Hyperbaric Technologist (CHT)

Renewal Period: 2 years

The Certified Hyperbaric Technologist (CHT) credential has the following recertification information:

  • A minimum of 24 hours of education credits (hours) are required during each re-certification period. At least 12 must be Category A, defined as education and training directly related to the practice of undersea, hyperbaric or hypobaric medicine.