NABL Lab Accreditation Made Easy

NABL Accreditation

The National Accreditation Board for Testing and Calibration Laboratories (NABL) is an autonomous body that provides formal recognition of the technical competence of laboratories in the fields of testing, calibration, medical diagnostics, and proficiency testing providers (PTPs) as per internationally accepted standards.

National Accreditation Board for Testing and Calibration Laboratories (NABL)

The National Accreditation Board for Testing and Calibration Laboratories (NABL) is an autonomous body under the Department of Science and Technology, Government of India, responsible for providing accreditation to laboratories that demonstrate technical competence in accordance with internationally recognized standards.

NABL accredits Testing Laboratories, Calibration Laboratories, Medical Laboratories, Proficiency Testing Providers (PTPs), and Reference Material Producers (RMPs) across a defined scope of activities.

Registered under the Societies Act, NABL facilitates third-party assessments for laboratories to verify their quality systems and technical capabilities, thereby supporting government bodies, industries, and associations in ensuring reliable testing and calibration outcomes.

NABL holds Mutual Recognition Arrangements (MRAs) with global bodies such as:

• APLAC (Asia Pacific Laboratory Accreditation Cooperation)

• ILAC (International Laboratory Accreditation Cooperation)

These MRAs enable international acceptance of accredited laboratory results, enhancing global trade and compliance.

NABL Accreditation: Ensuring Technical Competence Through Global Standards

Accreditation is the formal attestation by a third-party authority that a Conformity Assessment Body (CAB)—such as a testing laboratory, medical lab, Proficiency Testing Provider (PTP), or Reference Material Producer (RMP)—is technically competent to perform specific tests, calibrations, or assessments.

As India's trade and industrial sectors become increasingly globalized, the Government of India's liberalized policies have led to a growing demand for internationally accepted quality assurance. Laboratories and testing facilities are now required to demonstrate technical capabilities that align with global standards of competence.

The National Accreditation Board for Testing and Calibration Laboratories (NABL) plays a key role in this framework. It provides third-party accreditation to CABs, affirming their compliance with international standards and their ability to deliver reliable, high-quality results.

This includes:

• Testing and Medical Laboratories: Assessed for specific testing capabilities.

• Proficiency Testing Providers (PTPs): Recognized for their ability to evaluate the performance of other labs through inter-lab comparisons.

• Reference Material Producers (RMPs): Accredited to produce materials with known properties, which are used to validate test results and calibrate instruments.

In all cases, accreditation is based on rigorous evaluation by independent experts and follows globally recognized protocols such as ISO/IEC 17025, ISO 15189, ISO/IEC 17043, and ISO 17034.

Scope of NABL Accreditation

The National Accreditation Board for Testing and Calibration Laboratories (NABL) offers accreditation across a wide range of scientific, technical, and medical disciplines. Conformity Assessment Bodies (CABs) must apply for accreditation under the specific discipline relevant to their operations. For detailed eligibility and requirements, applicants should refer to the applicable NABL-specific criteria documents.

NABL currently provides accreditation in the following domains:

• Testing Laboratories

• Calibration Laboratories

• Biological Testing

• Chemical Testing

• Radiological Testing

• Mechanical Testing

• Thermal Testing

• Optical Testing

• Fluid-Flow Testing

• Photometry Testing

• Electro-Technical Testing

• Electrical Testing

• Electronics Testing

Benefits of NABL Accreditation

Obtaining NABL accreditation provides formal recognition of a laboratory's technical competence based on internationally accepted standards. This recognition delivers a wide range of benefits to laboratories, clients, and end-users alike:

Eligibility Criteria for NABL Accreditation

To be eligible for accreditation from the National Accreditation Board for Testing and Calibration Laboratories (NABL), an institution must fulfill specific technical and procedural requirements. These ensure that the Conformity Assessment Body (CAB) operates with internationally recognized quality and competency standards.

Basic Eligibility Requirements:

1. CAB Status:

The applicant must be a functioning Conformity Assessment Body (CAB) actively engaged in relevant services such as:

• Laboratory Testing

• Calibration

• Food Testing

• Research & Development

2. Designated Representative:

A qualified representative must be formally appointed to coordinate the NABL application process. This person should be well-versed in the CAB's existing quality systems.

3. Quality Management System:

The CAB must have a documented Quality Manual that complies with one of the following international standards:

• ISO/IEC 17025:2017 (for testing & calibration labs)

• ISO 15189:2012 (for medical laboratories)

• ISO/IEC 17043:2010 (for Proficiency Testing Providers)

4. Trained Personnel:

The CAB must appoint a Quality/Technical Manager who has undergone a minimum of 4 days of formal training in:

• Internal Audit Procedures

• Quality Management System Requirements

5. Quality Implementation:

The quality system described in the manual must be fully implemented within the organization prior to applying.

6. On-Site Testing/Calibration:

For on-site testing and calibration labs, the CAB must meet additional requirements as defined in NABL 130.

7. Proficiency Testing (PT) Participation:

The CAB must demonstrate participation in at least one of the following:

• Proficiency Testing Program (PTP) conducted by NABL or an approved international body

• Inter-Laboratory Comparison (ILC) if no PTP is available, with a minimum of one test parameter included

8. Internal Audit & Management Review:

The CAB must conduct at least:

• One Internal Audit

• One Management Review

before submitting the NABL application

Essential Documents Required for NABL Accreditation

To initiate and complete the NABL accreditation process, laboratories and Conformity Assessment Bodies (CABs) must prepare and submit a series of specific documents aligned with the type of service they provide. Below is a categorized list of all key NABL documents:

For Medical Laboratories

• NABL 112 – Criteria for Accreditation of Medical Laboratories

• NABL 153 – Specific Requirements for Medical Laboratories

• NABL 155 – Application Form and Checklist for Medical Laboratories

For Calibration Laboratories

• NABL 126 – Specific Criteria for Medical Device Calibration

• NABL 152 – Guidelines for Calibration Laboratories

For Testing Laboratories

• NABL 151 – Requirements and Criteria for Testing Laboratories

For PTPs and RMPs

• NABL 180 – Accreditation Criteria for Proficiency Testing Providers (PTPs)

• NABL 190 – Accreditation Criteria for Reference Material Producers (RMPs)

General and Supporting Documents

• NABL 100 – General Information Brochure about NABL

• NABL 160 – Guidelines for Managing the Laboratory Quality System Manual

• NABL 219 – Assessment Forms and Checklist for ISO/IEC 17025:2017 Accredited Labs

Step-by-Step Methodology to Implement ISO/IEC 17025 for NABL Accreditation

Implementing ISO/IEC 17025, or other applicable international standards, is a crucial step in achieving NABL accreditation for your laboratory or Conformity Assessment Body (CAB). Below is a streamlined guide to the entire process:

Step 1: Submit the Application

The CAB must submit an application to NABL in triplicate (3 copies). Two of these copies must include the Quality Manual, which should be prepared in accordance with one of the following standards, depending on the CAB's function:

• ISO/IEC 17025:2017 (Testing & Calibration Labs)

• ISO 15189:2012 (Medical Labs)

• ISO/IEC 17043:2010 (Proficiency Testing Providers)

• ISO 17034:2016 (Reference Material Producers)

Step 2: Pay the Applicable Fees

The required fees are outlined in NABL 100. If the CAB prefers not to disclose certain information, valid reasons must be submitted in writing along with the application.

Step 3: Acknowledgement & UIN Issuance

Upon receiving the application and fee, the NABL Secretariat issues a Unique Identification Number (UIN). This number must be used in all future communication with NABL.

Step 4: Pre-Assessment Visit

If the application is in order, a Lead Assessor is appointed to conduct a Pre-Assessment Visit to the CAB's premises. This visit:

• Evaluates readiness and quality system implementation

• Identifies any discrepancies

• Determines the need for further assessments

Step 5: Submission of Pre-Assessment Report

The Lead Assessor submits a comprehensive Pre-Assessment Report to the NABL Secretariat. A copy is maintained in the official document management system, and another is sent to the CAB.

Step 6: Full Assessment by NABL Team

Once initial issues are resolved, NABL forms an Assessment Team, comprising:

• The Lead Assessor

• Subject-specific Technical Experts

• Relevant domain professionals

Why Choose Sun Certifications India for NABL Accreditation Services?

At Sun Certifications India, we specialize in providing end-to-end support for NABL accreditation through a streamlined and expert-driven approach. Our comprehensive consulting services ensure your organization meets international quality and technical standards with ease.

Our NABL Consulting Includes:

Training & Awareness-

Empowering your team with in-depth knowledge of ISO/IEC standards and quality protocols

Documentation Support-

Assisting in preparing quality manuals, SOPs, and compliance documentation

Implementation Assistance-

Guiding you through the practical application of quality systems

Internal Audit Preparation-

Helping you conduct internal audits aligned with NABL requirements

Accreditation Process Management-

Full support during the application, assessment, and follow-up phases

Documentation Support Under Quality Management System (QMS)-

As part of our QMS implementation assistance, we help organizations prepare and structure essential documentation required for NABL accreditation. Our support includes:

Quality Manual-

Comprehensive documentation outlining your organization's quality policies, objectives, and system structure in alignment with ISO/IEC standards.

Procedures & Functional Formats

Detailed Standard Operating Procedures (SOPs), test methods, system workflows, and format templates necessary for consistent and compliant operations.

Work/Test Instructions

Clear and practical instructions for performing routine tests or operational tasks to ensure accuracy, repeatability, and staff consistency.

Our expert team ensures that all documentation meets NABL requirements and international standards, providing you with a solid foundation for successful accreditation and ongoing compliance.