National Credential
Credential: ASNT Central Certification Program (ACCP) Professional Level III - Liquid Penetrant Testing (PT)
Credentialing Agency: American Society for Nondestructive Testing (ASNT)

The American Society for Nondestructive Testing (ASNT), ASNT Central Certification Program (ACCP) Professional Level III - Liquid Penetrant Testing (PT) should have the skills and knowledge to establish techniques, interpret codes, standards, and specifications, designate the particular technique to be used, and to prepare or approve procedures and instructions. An ACCP Professional Level III should also have general familiarity with other NDT methods. Liquid Penetrant Testing (PT) is used to reveal surface discontinuities and makes it easier to detect flaws than an unaided visual inspection. Liquid penetrant testing is one of the most widely used NDT methods. Its popularity can be attributed to two main factors: its relative ease of use and its flexibility. It can be used to inspect almost any material provided that its surface is not extremely rough or porous. Materials that are commonly inspected using this method include; metals, glass, many ceramic materials, rubber and plastics. Candidates must have a minimum of 4 years of experience in an assignment at least comparable to that of a Level II in the applicable NDT method(s). ASNT Central Certification Program Professional Level III certification candidates are required to pass Basic, Method, Procedure Preparation, and Practical examinations.

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

Renewal Period: 5 years

ASNT Central Certification Program (ACCP) Professional Level III - Liquid Penetrant Testing (PT)

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 some  Promotion Points: This certification has been approved for promotion points. Click for more information.        
Enlisted 12N Horizontal Construction Engineer MOS other          
Enlisted 12T Technical Engineer MOS some  Promotion Points: This certification has been approved for promotion points. Click for more information.        
Enlisted 15G Aircraft Structural Repairer MOS other          
Enlisted 15N Avionic Mechanic MOS other          
Enlisted 18C Special Forces Engineer Sergeant MOS other          
Enlisted 74D Chemical, Biological, Radiological, and Nuclear (CBRN) Specialist MOS 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.

ASNT Central Certification Program (ACCP) Professional Level III - Liquid Penetrant Testing (PT)

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
  • 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 Society for Nondestructive Testing (ASNT)
PO Box 28518
1711 Arlingate Ln
Columbus, OH  43228-0518
Phone: (614) 274-6003
Fax: (614) 274-6899
Contact Page

ASNT Central Certification Program (ACCP) Professional Level III - Liquid Penetrant Testing (PT)

Option 1: Candidates must have four years of experience beyond the level II requirements in NDT in an assignment at least comparable to that of an NDT Level II in the applicable NDT method(s).

Option 2: Candidates must have completed with passing grades at least two years of engineering or science study at a university, college, or technical school; plus two additional years of experience beyond the level II requirements in nondestructive testing (NDT) in an assignment comparable to that of an NDT Level II in the applicable test method(s).

Option 3: Candidates must have graduated from a minimum four-year college or university curriculum with a baccalaureate degree in engineering or science, plus one year of experience beyond the level II requirements in nondestructive testing (NDT) in an assignment comparable to that of an NDT Level II in the applicable NDT method(s).

ASNT Central Certification Program (ACCP) Professional Level III - Liquid Penetrant Testing (PT)

  • Administration of NDT personnel certification programs
    • SNT-TC-1A, 2011 edition
    • ASNT CP-189, 2011 edition
  • General familiarity with other NDT methods
    • Radiography (safety, X-ray, and isotope methods)
    • Neutron radiography
    • Ultrasonic testing
    • Eddy current and flux leakage testing
    • Liquid penetrant testing
    • Magnetic particle testing
    • Leak testing
    • Acoustic emission testing
    • Visual testing
    • Thermal/infrared
  • Materials, fabrication, and production technology
    • Properties of materials, origin of discontinuities, and failure modes
    • Materials processing (casting, welding, forging, brazing, soldering, machining, heat treatment, surface treatment, adhesive bonding, etc.)
    • Dimensional metrology
  • Principles/Theory
  • Principles of liquid penetrant process
  • Theory
  • Proper selection of PT as method of choice
  • Liquid penetrant processing
  • Equipment/Materials
  • Liquid penetrant test units
  • Methods of measurement
  • Lighting for liquid penetrant testing
  • Materials for liquid penetrant testing
  • Testing and maintenance of materials
  • Interpretation/Evaluation
  • General
  • Factor affecting indications
  • Indications from discontinuities
  • Relevant and Nonrelevant indications
  • Procedures
  • Liquid penetrant testing procedures, codes, standards and specifications
  • Safety and Health
  • Toxicity
  • Flammability
  • Electrical hazards
  • Personnel protective equipment
  • Right to know (MSDS)
  • Disposal of used materials
  • Candidates must take an essay-type written examination to demonstrate the ability to prepare an NDT procedure for the applicable test method for a specified part based on a supplied NDT specification commonly used in the applicable Industry Sector.

ACCP Professional Level III candidates must successfully complete a combination practical which covers all techniques within the method.

  • Solvent Removable
  • Post-Emulsifiable
  • Water Washable

There are a number of resources available to help you prepare for the ASNT Central Certification Program (ACCP) Professional Level III - Liquid Penetrant Testing (PT) 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 American Society for Nondestructive Testing (ASNT) testing process, visit the agency website.

ASNT Central Certification Program (ACCP) Professional Level III - Liquid Penetrant Testing (PT)

Renewal Period: 5 years

The ASNT Central Certification Program (ACCP) Professional Level III - Liquid Penetrant Testing (PT) credential has the following recertification information:

  • The ACCP Level III program permits ACCP Level III certification holders to renew by "Points" at 5-year intervals. The "points" system requires that certification holders earn 25 points during their current 5-year certification period for NDT-related activities. See the point categories and structure.
  • Renewal by points without re-examination is permitted at the first 5-year interval after initial certification (or recertification) by examination. Renewal by examination is required 10-years after examination unless otherwise noted below. Renewal by examination may be done in lieu of renewal by points.

ASNT Central Certification Program (ACCP) Professional Level III - Liquid Penetrant Testing (PT)

Additional considerations for the ASNT Central Certification Program (ACCP) Professional Level III - Liquid Penetrant Testing (PT) include:

  • For Professional Level III candidates with a currently valid ASNT NDT Level III certificate in the applicable test method(s), the Basic and Method examination is waived.
  • If an examination is required for both Level II and Level III certification, those examination requirements are waived for Level III candidates that hold a currently valid ACCP Level II certification in the applicable test method.