National Credential
Credential: Certified Industrial Hygienist (CIH)  In-Demand resource  GI Bill resource  NCCA resource  ANSI resource
Credentialing Agency: American Board of Industrial Hygiene (ABIH)

The American Board of Industrial Hygiene (ABIH), Certified Industrial Hygienist (CIH) certification is for individuals working in professions that are based on the science of protecting and enhancing the health, safety, and environment of people at work and in their communities. A CIH's major areas of responsibility include exposure assessment principles and practice, control selection, implementation, and validation, and risk management. To earn the CIH certification, applicants must currently work in the practice of industrial hygiene (IH), meet academic and IH coursework requirements, meet a professional IH experience requirement that is supported by two professional references, and pass a written exam.

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

Renewal Period: 5 years

Certified Industrial Hygienist (CIH)

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 92F Petroleum Supply Specialist MOS other          
Enlisted 92L Petroleum Laboratory Specialist MOS some  Promotion Points: This certification has been approved for promotion points. Click for more information.        
Enlisted 92M Mortuary Affairs Specialist MOS some          
Warrant Officer 923A Petroleum Technician 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.

Certified Industrial Hygienist (CIH)

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: 4 years
  • Education: Bachelors
  • 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

American Board of Industrial Hygiene (ABIH)
6005 West St. Joseph
Suite 300
Lansing, MI  48917-4876
Phone: (517) 321-2638
Fax: (517) 321-4624
Email: abih@abih.org

Certified Industrial Hygienist (CIH)

Applicants must meet both formal education and specific Industrial Hygiene (IH) coursework requirements:

  • Academic Degree
    • Applicants must have at least a 4-year bachelor’s degree from a regionally-accredited college or university:
      • in Biology, Chemistry, Physics, or Engineering or
      • in IH or Safety from an ABET-accredited program, or
      • with at least 60 semester hours of science, math, engineering, or science-based technology (15 hours at the junior, senior, or graduate level).
  • Specific IH coursework
    • Applicants must have completed at least:
      • 180 academic contact hours or 240 continuing education contact hours of IH coursework with at least half of those hours in the areas of Fundamentals of IH, Toxicology, Measurements and Controls
      • two hours of ethics training or coursework

Applicants must have professional level, broad-scope IH experience spanning:

  • at least four years of IH practice (one year or six months of credit available for graduates of an ABET-accredited IH program, with a master’s or bachelor’s degree respectively), and
  • at least two of the following occupational health stressors: chemical, physical, biological or ergonomics

The Certified Industrial Hygienist (CIH) credential has the following other requirements:

  • Applicants need to provide at least two written confidential questionnaires from:

    • current supervisor to verify the applicant's current level of IH work
    • all other supervisors verifying all other work experience periods claimed
    • one CIH who is familiar with the applicant's work experience (alternatives are available)
  • Applicants must document completion of at least two contact hours of coursework in ethics. Acceptable ethics courses include academic ethics courses, company training on business conduct, or other ethics related subjects, or continuing education courses that present ethics topics. This ethics coursework will count as part of the current industrial hygiene coursework requirement. Credit for ethics is capped at five contact hours.

Certified Industrial Hygienist (CIH)

  • Exposure Assessment Principles and Practice (50%)
    • Task 1: Anticipate and recognize potential health hazards by studying environments, tasks, and people to identify risks associated with stressors, products, and processes.
    • Task 2: Assess the relationship between exposure and the potential adverse health effects to determine if further action is warranted using recognized scientific principles, literature, and standards.
    • Task 3: Design and implement an exposure assessment strategy (qualitative and/or quantitative) to determine the extent and magnitude of exposure using relevant principles to ensure scientific validity.
    • Task 4: Formulate conclusions, prioritize risks, and communicate findings and recommendations based on analysis and evaluation of data using standards, guidelines and ethical professional judgment.
  • Control Selection, Implementation, and Validation (35%)
    • Task 1: Assess and select options to eliminate or mitigate exposure using the hierarchy of controls and recognized scientific principles, literature, standards, and design and performance criteria.
    • Task 2: Develop and implement appropriate control programs and techniques designed to eliminate or mitigate exposure, using standards, guidelines, literature and ethical professional practice.
    • Task 3: Validate the effectiveness of controls to eliminate or mitigate exposure using recognized scientific principles, literature, standards, and design and performance criteria.
  • Risk Management (15%)
    • Task 1: Develop and implement programs/systems that address health risks using recognized risk-based methods and scientific principles, literature, standards and effective communication strategies.
    • Task 2: Evaluate and maintain the effectiveness of programs/systems designed to eliminate or mitigate exposure using regulations, standards, guidelines, and ethical professional practice.

There are a number of resources available to help you prepare for the Certified Industrial Hygienist (CIH) 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 Industrial Hygienist (CIH)

Renewal Period: 5 years

The Certified Industrial Hygienist (CIH) credential has the following recertification information:

  • The CIH certification is renewed every five years. Certification holders must agree to adhere to the ABIH Code of Ethics and to be governed by the ABIH Ethics Case Procedures, pay an annual fee, and either retake the CIH exam or submit a Certification Maintenance (CM) Worksheet, which reflects the accrual of at least 40 CM points.

    Additional information can be found on the ABIH website.