What an Outside NDT Level III Can and Cannot Do for Your Certification Program

Qualify Versus Certify: The Two Words That Decide the Answer

The question "can an outside agency certify my NDT employees" resolves cleanly once you separate two acts that shops use interchangeably. Qualification is evidentiary. It is the training hours delivered, the documented experience in the method, the general examination, the method-specific examination, the practical demonstration on representative hardware, and the current near-vision and colour contrast test. Certification is administrative. It is a signed record in which an employer declares that a named person has met the requirements of that employer's written practice for a stated method and level, on a stated date.

An outside agency can generate every element of the first act. It cannot perform the second, because the second is a statement about a relationship the agency is not part of. This is why auditors phrase the question as "who is your certifying authority" rather than "who trained these people." They expect a person inside your company holding delegated signature authority, supported by a file of qualification evidence that an outside Level III may well have produced from start to finish.

The practical consequence is that outsourcing Level III work does not outsource responsibility. SNT-TC-1A paragraph 7.4 makes the employer responsible for assuring that outside training met the written practice, and the same logic runs through the rest of the document. You buy expertise, examination integrity and audit readiness. You do not buy an escape from ownership of the program, and no contract clause can transfer it.

What an Outside Level III Signs, and What They Never Sign

A well-run outsourced arrangement produces a specific, auditable stack of signed documents. The outside Level III signs the approval block on the written practice, satisfying paragraph 5.5. They sign procedure and technique approvals within the methods they hold. They sign examination cover sheets, question-bank approvals and grading records, satisfying the Section 8 requirement that in-house certification examination questions be approved by the NDT Level III. They sign technical performance evaluation records and the annual program audit report.

There is exactly one document they never sign: the certification record itself, whether that is a wallet card, a certificate of certification or a line in a personnel qualification register. They also never sign anywhere the form asserts "employer." If your template has a single signature line serving both the technical approval and the employer's declaration, split it into two lines before the contract starts rather than after the audit.

A reliable test separates the two categories. If the document asserts a technical fact, such as a candidate scoring 87 percent on a graded specific examination or a procedure meeting the requirements of the referencing code article, the outside Level III is the correct signatory. If the document asserts a status the person holds inside your company, only your company can assert it. Technical facts travel with the expert. Status travels with the employer.

SNT-TC-1A: A Recommended Practice Your Code Turns Into a Requirement

SNT-TC-1A is written as guidance for employers building an in-house program, and its 2024 edition continues that framing. Paragraph 1.4 nevertheless states that employers shall not eliminate the basic provisions covering training, experience, examination and recertification. Paragraph 5.1 requires the employer to establish a written practice for the control and administration of NDT personnel training, examination and certification. Paragraph 5.5 requires that written practice to be reviewed and approved by the employer's NDT Level III, and 5.6 requires it to be maintained on file.

The reason it behaves like a mandatory document is invocation. ASME BPVC Section V, Article 1, T-120(e) requires NDE personnel to be qualified and certified in accordance with a written practice, with SNT-TC-1A or CP-189 used as the guideline for establishing it. Construction and fabrication codes reach the same place by their own routes. ASME administratively approves specific editions and addendum states, so confirm which edition your code year invokes before your written practice cites one by year.

Everything an outside Level III does fits inside that structure without amending it. The document says "the employer's NDT Level III" and describes duties. It does not say the individual must be a W-2 employee, and it does not create a named post. What it does do, repeatedly, is put the employer's name on the outcome. Read every paragraph asking who is responsible if this is wrong, and the answer never moves.

ANSI/ASNT CP-189: Same Boundary, Tighter Gate

CP-189 is a standard rather than a recommended practice, so its provisions read as requirements once a contract or code invokes it. The boundary on certifying authority is identical to SNT-TC-1A: the employer certifies, and an outside agency does not. Where CP-189 changes the outsourcing calculation is the gate on the Level III themselves. Employer certification at Level III under CP-189 requires the individual to hold a current ASNT NDT Level III certificate in the method concerned.

That single requirement removes the internally examined Level III as an option. You cannot write a practice that qualifies your senior UT technician to Level III on your own examinations and satisfy CP-189 at the same time. You either employ or contract someone who already holds the ASNT credential in each method your program certifies, which is precisely the condition that makes contracting attractive to a shop running four, five or six methods with no realistic path to hiring one person who holds them all.

Method scope becomes the discipline in a CP-189 program. A contracted Level III certified in UT and PT can approve UT and PT procedures and grade UT and PT examinations, and nothing else. Shops running magnetic particle, radiography and eddy current alongside those methods often engage two contractors with complementary certificates, or one agency that fields more than one certified individual. Map methods to certificates in the contract, not in an email.

NAS 410 and the Responsible Level 3: The One Genuine Difference

Aerospace works differently, and this is where most of the confusion originates. NAS 410, published by the Aerospace Industries Association and now at Revision 6, requires the employer to identify in writing a Responsible Level 3 to act on its behalf in matters regarding the NDT qualification and certification process. SNT-TC-1A and CP-189 describe duties attaching to "the employer's NDT Level III" without creating a titled post. NAS 410 creates the post, names its holder in the employer's documentation, and makes that designation itself an auditable artefact.

The qualifying conditions are specific. The Responsible Level 3 must be certified in accordance with the standard as a Level 3 in one or more NDT methods, and must hold a thorough knowledge of the written instructions, codes, specifications and standards the employer uses, together with knowledge of the materials, components, product technologies, methods and techniques the employer actually applies. That second condition is why a purely remote, never-visited arrangement fails on the substance even when it passes on paper. Product knowledge is site knowledge.

Revision 6 also introduced an alternative points-based pathway toward Level 3 qualification, allowing Level 2 personnel to accumulate credit through designated NDT activities. That widens the internal succession route over time, but it does not touch the certifying boundary. Even in aerospace, where the Responsible Level 3 may sit outside the company, the employer certifies its own personnel and the employer answers for the program. Prime contractor flowdowns and accreditation checklists frequently add their own constraints on top, so verify your customer's clauses before signing.

Paragraph 8.1.1 and Why Outsourcing Often Improves Compliance

SNT-TC-1A paragraph 8.1.1 states that a certification examination shall not be administered by the candidate themselves or by a subordinate of the candidate. In a large company this is trivially satisfied. In a twelve-person inspection shop with one Level III who wrote the training material, delivered the classroom hours, supervised the on-the-job time and then set the examination, the independence is thin even when nobody has done anything improper. When that Level III is the candidate seeking recertification, the clause bites directly.

A contracted Level III breaks the loop cleanly. There is no reporting relationship in either direction, no shared bonus pool and no supervisory history between examiner and candidate. The same argument applies to the annual or periodic program audit, where an internal Level III is being asked to audit a system they designed and operate. Independence purchased deliberately reads far better in an audit narrative than independence claimed after the fact.

This reframes the outsourcing decision. Shops usually start looking for an outside Level III because they lost one or never had one. The stronger reason to keep the arrangement after the immediate gap closes is that examination integrity and audit independence are structurally easier to demonstrate when the examiner is not on the same organisation chart as the candidate.

Where This Goes Wrong on Audit Day

Five failure modes account for most findings. First, certification cards carrying the agency's name or the contracted Level III's signature in the certifying block. Second, a written practice that names the agency as the certifying authority, which converts a document error into a systemic one because the practice is the governing document. Third, method scope drift, where a contractor certified in ultrasonics and penetrant approves a radiography procedure because they were the Level III on site that week.

Fourth, no evidence on file of the outside Level III's own current certification, recertification date and, where CP-189 applies, their ASNT certificate number and expiry. The auditor will ask for it in the first ten minutes, and an agency letterhead assurance is not the same as a copy of the credential. Fifth, examination records that record only a pass, with no examination version, date, proctor identity, question set reference or graded paper retained. The grading happened off site, so the evidence has to be transferred deliberately.

All five are documentary rather than technical, and all five are cheap to prevent and expensive to remediate. Remediation usually means re-examining personnel whose records cannot be reconstructed, on a schedule set by a customer rather than by you, while the affected work sits in hold status. The cost of that is the real argument for structuring the contract properly at the start.

Structuring the Contract So the Boundary Stays Visible

Name the certifying officer in the written practice by title rather than by person, so a departure does not invalidate the document. Add a short paragraph stating explicitly that Level III technical duties are performed under contract by a named external individual, that their qualification records are held in the quality system, and that certification is executed by the named officer. An auditor who reads that paragraph in the first five minutes rarely spends the next hour probing for the gap.

Define method scope in the contract as a table of methods against the contractor's certificates, with a clause that scope changes require a certificate copy before any approval is signed. Define the deliverable list: written practice approvals, procedure approvals, examination sets, graded papers, technical performance evaluation records, audit reports. Define response times for procedure approval, because a two-week turnaround on a procedure revision stops production just as effectively as having no Level III at all.

Settle record ownership before the first document is produced. Examination masters, question banks, graded papers and qualification files belong inside your quality system, with the agency holding copies rather than originals. Add an exit clause covering handover of all records within a fixed period, and a continuity clause covering what happens if the agency changes the individual assigned to you, since that individual's certificates are what bound your program's scope.

How Atlantis Provides Outsourced Level III Support

Atlantis provides outsourced ASNT Level III services structured around exactly this boundary. We author and approve your written practice, build and maintain method examination banks, proctor and grade examinations, approve NDT procedures and techniques within our certified methods, run technical performance evaluations, and conduct the periodic program audit that keeps you ready for customer and accreditation visits. The engagement is affordable, accessible and fully customizable to the methods and codes your contracts actually invoke.

We do not sign your certification records, and we say so at kickoff rather than at handover. Part of onboarding is restructuring your certification template so the technical approval block and the employer declaration block are separate lines, and identifying the officer in your company who will hold signature authority. Shops that skip that step end up with a technically excellent program that fails on a single line of a form.

If your Level III post is vacant, contested at audit, or spread across more methods than one credential covers, request a demo or a quote at /contact or write to info@atlantisndt.com. Tell us the methods, the codes your customers invoke and the accreditation you hold, and we will map which duties transfer to us and which stay with your certifying officer before any contract is drafted.

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