National Credential
Credential: Occupational Hygiene and Safety Technologist (OHST)  GI Bill resource  ANSI resource
Credentialing Agency: Board of Certified Safety Professionals (BCSP)

The Board of Certification Safety Professionals (BCSP), Occupational Hygiene and Safety Technologist (OHST) candidate performs occupational health and safety activities on a part-time or full-time basis.  The candidate's job duties will include worksite assessments to determine risks, potential hazards and controls, evaluating incident and loss records, and prepparing emergency response plans.  OHST candidate must work a minimum of three years in occupational hygiene or safety at least 35% of the time, have duties that require technical skills and knowledge in occupational hygiene and safety.  Candidate must pass a written exam.

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

Renewal Period: 5 years

Occupational Hygiene and Safety Technologist (OHST)

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 12H Construction Engineering Supervisor MOS other          
Enlisted 12M Firefighter MOS some  Promotion Points: This certification has been approved for promotion points. Click for more information.        
Enlisted 12T Technical Engineer MOS other          
Enlisted 15F Aircraft Electrician MOS other          
Enlisted 15P Aviation Operations Specialist MOS other          
Enlisted 68S Preventive Medicine Specialist MOS some  Promotion Points: This certification has been approved for promotion points. Click for more information.        
Enlisted 6Q Additional Duty Safety NCO ASI some          
Enlisted N4 Health Physics Specialist ASI some          
Warrant Officer 120A Construction Engineering Technician WOMOS some        
Warrant Officer 740A Chemical, Biological, Radiological, and Nuclear (CBRN) Warrant Officer WOMOS 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.

Occupational Hygiene and Safety Technologist (OHST)

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: 3 years recommended
  • Education
  • Training
  • Membership
  • Other
  • Fee

Exam Requirements ()

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

Renewal Period: 5 years

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

Board of Certified Safety Professionals (BCSP)
8645 Guion Road
Indianapolis, IN  46268
Phone: 1-317-593-4800
Fax: 1-317-593-4400
Contact Page

Occupational Hygiene and Safety Technologist (OHST)

OHST candidate must have a minimum of 3 years in a part-time or full-time experience in occupational health or safety.  The candidate's job duties must require at least 35% of technical skills and kowledge in occupational health and safety.

OHST Candiate can learn more on the eligibility requirements.

The Occupational Hygiene and Safety Technologist (OHST) credential has the following other requirements:

  • Candidate must agree to adhere to the BCSP Code of Ethics.

Occupational Hygiene and Safety Technologist (OHST)

  • Assessing Safety, Health, Environmental and Security Risk (31.5%)
    • Research information pertaining to the business or operation using appropriate tools and references to obtain risk data, including catastrophic and emergency response scenarios using established techniques in order to reduce risk.
    • Evaluate business and operations data (e.g., monitoring and surveillance data; injury and illness statistics; incident reports; safety and health programs; and insurance loss data) by comparing the data against internal history as well as international, national or industry standards to recognize and define risks.
    • Conduct surveys of the business or operation in accordance with accepted survey methodology (e.g., observing the facility; referring to process flow charts; verifying safety and health systems; programs and documentation; and interviewing applicable stakeholders) in order to recognize hazards and controls.
    • Communicate the results of surveys to applicable stakeholders with appropriate documentation / presentations to highlight risks and to recommend and justify appropriate actions for managing current and potential loss scenarios.
  • Hazard Control and Loss Prevention (35.5%)
    • Evaluate risks using established analytical techniques to prioritize preventative and corrective actions.
    • Using research, determine appropriate hazard control techniques.
    • Communicate the hazard control measures by identifying essential resources and implementation strategies to manage risk.
    • Implement and evaluate appropriate controls to manage risk
  • Verification and Continuous Improvement (33%)
    • Verify the implementation and effectiveness of hazard control measures (e.g., site surveys, review of records, audits, interviews with key personnel, and follow up with the responsible individuals) to manage risks
    • Investigate incidents, accidents, and near misses using established techniques to determine root causes, identify trends and improve corrective action plans
    • Implement assigned responsibilities for response plans (e.g., organize tactical teams, provide training, collaborate with contractors, select equipment, and manage specific programs) to respond to disasters and other emergencies
    • Evaluate the compliance and implementation of response plans at regularly scheduled intervals by reviewing their applicability for present and emerging conditions (e.g., changes in organizational structure, and new processes or materials) to improve the plans.

There are a number of resources available to help you prepare for the Occupational Hygiene and Safety Technologist (OHST) 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.

Testing for this credential is handled by Pearson VUE. The test centers are located in the U.S. They also have some test centers on military bases.

To find out more, use the following links on the Pearson VUE website:

For more information on the Board of Certified Safety Professionals (BCSP) testing process, visit the agency website.

Occupational Hygiene and Safety Technologist (OHST)

Renewal Period: 5 years

The Occupational Hygiene and Safety Technologist (OHST) credential has the following recertification information:

  • OHST recertification is every 5 years and candidate must achieve 20 points of continuing education activities.  There are 10 categories of activities, each providing points toward meeting that goal.  There is no limit to the number of points in some categories, while other categories have annual and/or total point limits. 

    An annual renewal fee is required to maintain certification.