ISO 9001 CERTIFICATION

CERTIFICATION PROCESS

ASSESSMENT

ISO 9001 Certification: Requirements, Process, Assessment, Audit & 2026 Revision

By PZVAR Technical Editorial Team

9 Min Read

10 Aug 2026

A Quality Management System is more than documents. To obtain ISO 9001 certification, the QMS should be implemented and evaluated within the certified scope.

ISO 9001 is an internationally recognized Quality Management System standard applicable to organizations of different sizes and fields, including manufacturing, engineering and fabrication.

The latest version is ISO 9001:2015, supplemented by the 2024 Climate Action Amendment. The sixth edition is in preparation, with publication scheduled for September 2026.

ISO 9001 certification is not simply an application and certificate. It involves assessment of the QMS, including processes, documented information, implementation, objective evidence, performance evaluation and continual improvement.

First Welding Certification Pvt Ltd provides ISO 9001 Certification with IAF Accreditation following the applicable assessment process. The certificate is issued when the relevant requirements are evaluated and fulfilled.

For accreditation details, visit PZVAR Accreditation & Recognition and the International Accreditation Forum (IAF).

What is ISO 9001 Certification?

ISO 9001 certification is the independent certification of an organization’s Quality Management System (QMS) against applicable ISO 9001 requirements within a defined scope.

ISO 9001 sets requirements for establishing, implementing, maintaining and continually improving a QMS.

ISO 9001 Standard: Defines QMS requirements.
ISO 9001 Certification: Independently assesses conformity with those requirements.

Documents alone are not enough. The organization must demonstrate implementation and objective evidence across relevant processes, such as leadership, purchasing, production, quality, competence, inspection, supplier control, internal audit, management review, corrective action and continual improvement.

The QMS should operate across relevant organizational processes, not only within the quality department.

What Is a Quality Management System?

A Quality Management System (QMS) is a set of processes, responsibilities, resources and controls used to meet applicable requirements and improve customer satisfaction.

A manufacturing QMS can connect:

Management → Purchasing → Production → Inspection → Delivery → Customer Feedback → Improvement

ISO 9001 uses a process approach supported by risk-based thinking and PDCA.

Key QMS elements include quality objectives, responsibilities, competence, operational control, monitoring, internal audit, management review, corrective action and continual improvement.

Who Can Be Certified to ISO 9001?

ISO 9001 is applicable regardless of organization size or type.
The certification scope depends on the organization’s activities, processes and locations.
Customer, contractual and statutory requirements are also considered.
The organization must demonstrate implemented processes and objective evidence within the defined scope.

OrganizationTypical QMS Application
Manufacturing companyProduction and process control
Engineering companyEngineering and operational processes
Fabrication companyFabrication and quality control
MSMEDefined and controlled business processes
Large manufacturerIntegrated process management
Railway manufacturerQMS and applicable customer requirements
Structural manufacturerManufacturing and technical processes
Pressure equipment manufacturerProduction and applicable product requirements

ISO 9001 Principles and Requirements

ISO identifies seven quality management principles:

  1. Customer Focus – Understanding and meeting customer requirements.
  2. Leadership – Establishing direction and commitment to the QMS.
  3. Engagement of People – Ensuring competent and involved personnel.
  4. Process Approach – Managing interconnected processes as a system.
  5. Improvement – Continually improving QMS effectiveness.
  6. Evidence-Based Decision Making – Using relevant data and information.
  7. Relationship Management – Managing relevant external relationships.

ISO 9001 Clauses 4 to 10

ClauseMain AreaFocus
4ContextOrganization, interested parties, QMS scope and processes
5LeadershipLeadership, policy and responsibilities
6PlanningRisks, opportunities and quality objectives
7SupportResources, competence and documented information
8OperationOperational planning and process control
9Performance EvaluationMonitoring, internal audit and management review
10ImprovementNonconformity, corrective action and improvement

The seven principles provide the foundation for effective quality management, while Clauses 4–10 define the core ISO 9001 requirements that organizations need to address within their QMS.

ISO 9001 Certification Scope

The certification scope defines the activities, processes and locations covered by the QMS certification.

It may consider:

  • Organizational activities
  • Products and services
  • Processes
  • Locations and departments
  • Applicable requirements
  • Outsourced processes
  • Relevant exclusions or non-applicability

The scope should accurately reflect the organization’s actual QMS coverage.

Organization → Activities → Processes → Locations → Certification Scope

ISO 9001 certification involves a structured assessment process from application through surveillance and recertification.

  1. Application – Organization and QMS details are submitted.
  2. Scope Review – Organization details and certification scope are reviewed.
  3. Audit Programme – Audit duration and programme are determined.
  4. Stage 1 – QMS information and readiness are evaluated.
  5. Stage 2 – QMS implementation and effectiveness are assessed.
  6. Findings & Corrective Action – Applicable findings are recorded and addressed.
  7. Technical Review – Audit documentation is technically reviewed.
  8. Certification Decision – An authorized decision is made after requirements are fulfilled.
  9. Surveillance – Continued conformity and implementation are evaluated.
  10. Recertification – Continued suitability, adequacy and effectiveness are evaluated.

 

ISO 9001 Certification Timeline

ISO 9001 certification process

What Is Assessed During ISO 9001 Certification?

An ISO 9001 assessment goes beyond documents. The assessor evaluates objective evidence of implemented processes within the certification scope.

iso 9001 certification

The assessment may cover relevant functions such as management, HR, production, quality, maintenance, sales, marketing, purchasing and traceability, depending on the certification scope.

Assessment Framework

Defined Process → Implementation → Objective Evidence → Monitoring → Evaluation → Improvement

Therefore, preparation should focus on implemented processes and evidence, not documents alone.

ISO 9001 Documented Information and Objective Evidence

Documented information is important, but documents alone do not demonstrate effective QMS implementation.

Depending on the scope, records may include:

  • Quality policy and objectives
  • Process and customer requirements
  • Purchasing and supplier records
  • Production, inspection and calibration records
  • Competence and training records
  • Internal audit and management review records
  • Customer complaints and nonconformities
  • Corrective action and performance records
  • Traceability records

The key question is

“Can the organization demonstrate that its QMS processes are implemented and effective through objective evidence?”

Where additional requirements apply, other standards may also be relevant, such as ISO 15614 for welding procedures, ISO 9606-1 for welder qualification and ISO 9712 for NDT personnel.

Stage 1Stage 2
Review QMS informationEvaluate QMS implementation
Review organizational contextEvaluate process effectiveness
Review interested partiesExamine operational control
Review certification scopeEvaluate customer requirement
Review quality policy/objectivesReview monitoring and measurement
Review internal audit statusReview internal audit implementation
Review management review statusReview management review

Nonconformity, Corrective Action

A nonconformity occurs when a requirement is not fulfilled.

During an ISO 9001 audit, findings are evaluated against the applicable requirements and objective evidence.

Examples of areas where nonconformities may occur include:

  • Incomplete records
  • Uncontrolled documented information
  • Unclear responsibilities
  • Inadequate monitoring
  • Supplier control issues
  • Missing inspection records
  • Incomplete internal audit implementation
  • Inadequate management review records
  • Failure to address identified nonconformities

The organization should determine the cause of relevant nonconformities, implement appropriate corrective action and retain evidence of the action taken according to the applicable certification requirements.

Corrective action should address the identified problem and its cause rather than simply correcting an individual record.

ISO 9001 Certification Readiness Checklist

Before an ISO 9001 certification audit, an organization can review:

Area

Check

QMS scope

Organizational context

Interested parties

Quality policy

Quality objectives

Process identification

Risks and opportunities

Customer requirements

Contract/order review

Supplier control

Production/operation control

Competence records

Monitoring and measurement

Calibration, where applicable

Internal audit

Management review

Nonconformity control

Corrective action

Performance evaluation

Continual improvement

Required documented information

Objective evidence

The checklist should be adapted to the organization’s activities and certification scope.

ISO 9001 Certification Cost, Duration and Benefits

ISO 9001 Certification Cost

There is no fixed ISO 9001 certification cost for every organization. The applicable cost depends on factors such as:

  • Organization size
  • Number of employees
  • Certification scope
  • Number of locations
  • Process complexity
  • Audit duration
  • Applicable certification requirements

Therefore, the certification arrangement should be determined based on the organization’s actual details rather than a standard price.

How Long Does ISO 9001 Certification Take?

The duration varies according to the organization’s QMS readiness, scope, size, locations and process complexity.

The overall process generally follows:

Application → Scope Review → Audit Planning → Stage 1 → Stage 2 → Findings, if applicable → Technical Review → Certification Decision

After certification, surveillance assessments are conducted to evaluate continued conformity and implementation, followed by recertification according to the applicable certification cycle.

Benefits of ISO 9001 Certification

ISO 9001 certification can provide organizations with:

  • Structured Processes – Clearly defined and controlled QMS processes.
  • Customer Confidence – Independent evidence of conformity to ISO 9001 requirements.
  • Better Process Control – Improved monitoring and evaluation of relevant activities.
  • Continual Improvement – A structured approach to corrective action and improvement.
  • Business Opportunities – Certification may be required by customers, contracts, tenders or supply chains.

ISO 9001 and Other Industrial Standards

ISO 9001 provides a general Quality Management System framework. It does not automatically replace product-specific, welding-specific, personnel-certification or regulatory requirements.

Standard

Primary focus

ISO 9001

Quality Management System

EN ISO 3834

Welding quality requirements

EN 1090

Structural steel and aluminium execution

EN 15085

Railway welding

PED 2014/68/EU

Pressure equipment

SPVD 2014/29/EU

Simple pressure vessels

EN 10025-1

Structural steel products

EN 10204

Inspection documents

ISO 9712

NDT personnel

WPS/WPQR

Welding procedure qualification

Welder Certification

Welding personnel qualification

For welding manufacturers, see EN ISO 3834 certification.

For structural manufacturers, see EN 1090 certification.

For railway organizations, see EN 15085 certification.

For pressure equipment, see PED certification and SPVD certification.

For structural steel products, see EN 10025-1 certification.

For inspection documentation, see EN 10204 3.2 certification.

For welding personnel, see Welder Certification.

ISO 9001:2015 and the 2026 Revision

As of August 2026, ISO 9001:2015 remains the published fifth edition of the standard.

ISO published ISO 9001:2015/Amd 1:2024 – Climate action changes in February 2024.

ISO currently lists the sixth edition, ISO 9001, as under publication with a publication date of September 2026.

Therefore, organizations should distinguish between:

Current published standard:
ISO 9001:2015 + 2024 Amendment

Upcoming edition:
ISO 9001, sixth edition, scheduled for publication in September 2026

Organizations certified to ISO 9001:2015 will need to consider the applicable transition arrangements once the revised standard is published and the transition requirements are established. ISO states that certified organizations will receive a transition period to migrate to the new edition.

Conclusion

ISO 9001 certification provides an independent assessment of an organization’s Quality Management System within its defined certification scope.

For manufacturers, engineering companies and fabrication organizations, effective quality management depends on how processes are established, implemented, monitored and improved across the organization.

A strong QMS connects people, processes, responsibilities, resources and objective evidence to create a structured approach to quality management.

As the ISO 9001 standard moves toward its next edition in 2026, organizations should continue to focus on effective implementation of their existing QMS while following official updates regarding the revised requirements.

Ultimately, ISO 9001 certification is not only about having documented procedures. It is about demonstrating that the organization’s QMS is implemented, controlled, evaluated and continually improved within its certified scope.

Frequently Asked Questions

Is ISO 9001 the same as a Quality Management System?

No.

ISO 9001 specifies requirements for a Quality Management System. The QMS is the organization’s established system of processes, responsibilities, controls and documented information used to manage quality.

ISO 9001 certification is not universally mandatory. Its applicability may arise from customer requirements, contracts, tenders, supply-chain requirements, regulatory conditions or organizational decisions.

Yes. ISO 9001 can be applied to organizations of different sizes and sectors. The QMS scope and processes should reflect the organization’s actual activities.

No.

The organization must demonstrate implementation and conformity through appropriate objective evidence.

Planning for ISO 9001 Certification?

First Welding Certification Pvt Ltd (PRVÁ ZVÁRAČSKÁ, a.s.) provides ISO 9001 certification with IAF accreditation following the applicable assessment process.

Certification is issued after the organization’s Quality Management System has been assessed against the applicable requirements and the relevant certification requirements have been fulfilled.

If your organization is considering ISO 9001 certification, provide your company activities, locations and intended certification scope to determine the applicable certification arrangements.