Machine translation post-editing is no longer judged on speed alone. Buyers now expect evidence that post-editing is controlled, qualified, reviewed, and aligned with a recognized framework. That is why many language service providers ask how to get ISO 18587 certification when they want to formalize their MTPE services and present auditable proof of quality.

ISO 18587 applies to translation service providers that deliver full, human post-editing of machine translation output. It does not replace ISO 17100. It works as an extension to it, which means the path to certification is partly about MTPE and partly about whether your organization already operates with the broader process discipline required for professional translation services. For that reason, certification is rarely just a paperwork exercise. It is an operational test.

What ISO 18587 certification actually covers

ISO 18587 specifies requirements for the process of full post-editing of machine translation output. The focus is not on raw machine translation performance in isolation. The standard is concerned with how a provider controls the post-editing workflow, assigns competent personnel, defines suitability of source content, manages project specifications, and verifies that final output reaches a level comparable to human translation produced for the same purpose.

That scope matters because some providers assume the standard certifies an engine, a tool stack, or a general AI capability. It does not. Certification assesses the provider’s managed process. Auditors will look at how MTPE projects are accepted, planned, executed, reviewed, and documented. They will also examine whether staff qualifications and workflow controls match the standard’s requirements.

If your organization offers only raw machine translation, light post-editing, or highly informal editing without documented controls, you are not yet operating at the level ISO 18587 expects. The standard is designed for structured, professional MTPE services.

How to get ISO 18587 certification step by step

The most efficient route starts with a realistic view of your current system. Many organizations are closer than they think on terminology, production management, and reviewer assignment, but further away on documented evidence. Others have strong documentation yet weak role definitions for post-editors and reviewers. Certification depends on both.

1. Confirm your certification basis

In practice, ISO 18587 is normally certified in connection with ISO 17100 because the MTPE requirements build on the translation service framework set out there. If your organization has not yet established compliance with ISO 17100, that should be addressed first or in parallel. This is one of the main planning decisions, because it affects timeline, audit scope, and internal preparation effort.

For organizations already certified to ISO 17100, adding ISO 18587 is usually more straightforward. You are extending a mature quality and production system rather than building one from the ground up.

2. Perform a gap assessment

Before applying for certification, conduct a formal gap review against the requirements of ISO 18587 and the related foundation requirements of ISO 17100. This step should test your actual operating model, not your intended one.

A useful assessment reviews service agreements, project procedures, job descriptions, qualification records, revision workflows, post-editing guidelines, client communication procedures, and records from completed MTPE jobs. The question is simple: can you show, with objective evidence, that your MTPE process is controlled and repeatable?

This stage often reveals the same issues. Providers may use skilled linguists but lack documented competence criteria for post-editors. They may revise content but fail to distinguish full post-editing from light editing. They may accept unsuitable content for MTPE without a documented feasibility review. Those are manageable issues, but they need correction before audit.

3. Build or refine your documented process

Certification bodies will expect documented procedures that explain how MTPE projects move through your system. That includes intake, scoping, suitability assessment, resource assignment, post-editing, revision where required, and final delivery controls.

The standard does not require unnecessary bureaucracy, but it does require clarity. Your documentation should define what full post-editing means in your organization, how quality expectations are set, when machine translation is appropriate, and how post-editors work against project specifications. It should also show how reviewers or revisers are assigned when applicable and how nonconformities are handled.

This is also where terminology discipline becomes important. If teams use the terms review, revision, proofreading, and post-editing interchangeably, the audit process becomes more difficult. Clear role and process definitions reduce that risk.

4. Validate personnel competence

ISO 18587 places significant emphasis on competence. Your organization must demonstrate that post-editors and other relevant personnel are qualified for the work they perform. That means maintaining records for education, professional experience, training, domain expertise, and role-specific competence.

For many providers, this is the point where informal freelancer management becomes a compliance issue. A strong vendor pool is not enough if qualifications are scattered across email threads or unsupported by consistent records. Auditors will expect an organized method for evaluating and approving personnel.

Competence should also be matched to service reality. If you handle regulated medical, legal, or technical content, your records and assignment logic should show domain suitability, not just language pair availability.

5. Control the MTPE workflow in practice

A documented procedure only helps if operational records show it is being followed. During certification, auditors typically want evidence from real projects. They may review project files, specifications, resource assignments, change records, quality checks, and client requirements.

Your workflow should show that source text suitability is considered before MTPE is accepted, that project specifications are communicated, and that full post-editing is performed to the required level. If quality issues are identified, corrective action should be traceable. If client-specific instructions affect the process, those instructions should be captured and implemented systematically.

This is where technology can help or hurt. Translation management systems, QA tools, and workflow platforms can support compliance, but only if your configuration reflects the standard. A tool does not create conformity on its own.

The certification audit process

Once your system is ready, the next step is the external audit. A certification body with relevant competence in language service standards will review your documented system and your implementation records.

The process generally begins with application and scope definition. Your organization will identify the services, locations, and operational units included in certification. After that, the audit typically moves through document review and operational assessment.

Auditors will examine whether your policies, procedures, role definitions, and records satisfy the standard. They will also test whether practice matches documentation. If the documented process says all MTPE jobs receive suitability assessment and qualified resource assignment, the auditor will expect to see evidence in actual project files.

Nonconformities, if identified, usually fall into one of two categories: isolated gaps or systemic weaknesses. An isolated missing record may be easier to correct. A systemic weakness, such as undefined competence criteria across your supplier network, may require broader remediation before certification can be granted.

Common obstacles when pursuing ISO 18587

The most common mistake is treating ISO 18587 as a label for using machine translation. It is a process certification, not a technology claim. Organizations that frame their service too loosely often struggle because they cannot show controlled full post-editing.

A second issue is weak distinction between service types. If your teams alternate between light post-editing, full post-editing, translation, and revision without clear specifications, audit evidence becomes inconsistent. Buyers may accept that flexibility commercially, but certification requires defined processes.

A third issue is underdeveloped personnel records. This is especially common in multi-country or freelancer-heavy models. Competence can exist in reality while remaining invisible to an auditor because the records are incomplete.

There is also a strategic trade-off. Some providers want certification quickly and limit scope to a narrow service line. Others certify a broader operational footprint to strengthen market positioning. Narrow scope may be easier and faster. Broader scope can deliver stronger commercial value, but it usually requires more preparation.

How long it takes and what affects readiness

There is no single timeline for how to get ISO 18587 certification because readiness depends on your current maturity. A provider with established ISO 17100 controls, documented vendor management, and traceable MTPE workflows may prepare relatively quickly. A provider starting from informal processes will need more time to define responsibilities, build records, and stabilize implementation.

The real driver is not document creation. It is operational consistency. Certification becomes realistic when your teams can follow the process repeatedly and produce reliable evidence across projects.

For that reason, many organizations benefit from a pre-certification assessment before committing to the formal audit. A structured readiness review can reduce avoidable findings and clarify whether your gaps are minor corrections or system-level issues. For providers seeking a specialized route, Translationstandards.net supports organizations that need language-industry-specific audit preparation and certification assessment.

ISO 18587 certification is most valuable when it reflects a service model you can defend under scrutiny. If your MTPE process is qualified, documented, and consistently applied, certification becomes more than a badge. It becomes credible proof that your organization can deliver machine translation post-editing under a recognized international standard.