NABL

What is NABL (National Accreditation Board for Testing and Calibration Laboratories)

Author
Ayush Chauhan5 min read
Sep 4, 2023• Last updated on Jul 30, 2026
What is NABL (National Accreditation Board for Testing and Calibration Laboratories)

What is NABL ?

National Accreditation Board for Testing and Calibration Laboratories (NABL) is an accreditation body. The NABL was established to provide a framework for the government, business associations, and the industry at large to independently assess the caliber and technical competence of testing and calibration laboratories.

NABL standards are applicable in all kinds of laboratories including institutional research laboratories but in the medical diagnostic industry, these are mostly seen as a quality assurance procedure that includes internal and external reviews at par with worldwide quality standards.

It is the only certification body acknowledged by the Indian government that provides a neutral assessment of technical competence and lab standards. The NABL also has links with the International Laboratory Accreditation Cooperation (ILAC) and the Asia Pacific Laboratory Accreditation Cooperation.

Eligibility Criteria for NABL Approval

To qualify for NABL approval, an institution (CAB) must meet specific eligibility criteria:

  • The institution must be a CAB involved in activities such as laboratory testing, calibration, food processing, or research and development.
  • A representative must be appointed to initiate the NABL approval process, and they should be well-versed in the CAB's existing quality processes.
  • The institution must have a documented manual outlining its quality standards in compliance with ISO/IEC 17025:2005, ISO 15189:2012, or ISO/IEC 17043:2010.
  • An appointed manager must undergo relevant training, including a minimum of 4 days of internal audit and management policy training.
  • The CAB must implement its quality document immediately and satisfy the criteria outlined in NABL 130, which provides criteria for Site Testing and Site Calibration Laboratories.
  • Participation in the Proficiency Training Program conducted by NABL or an international institution is mandatory. If unavailable, the institution can engage in inter-lab comparisons for quality assessment.
  • The CAB must conduct at least one internal audit and management review before applying for NABL approval.

Maintaining NABL compliance requires accurate documentation, efficient workflows, and reliable data management. Implementing laboratory information system software helps diagnostic laboratories streamline sample tracking, automate reporting, maintain records, and improve operational efficiency while supporting quality standards.

Steps for NABL Approval

The process of obtaining NABL approval involves several crucial steps:

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Start Your Diagnostic Laboratory with Confidence

Achieving NABL accreditation is only one part of building a successful diagnostic laboratory. Along with meeting quality standards, laboratories need the right infrastructure, workflows, documentation, equipment, and technology. If you're planning to launch a new lab, our Diagnostic Lab Starter Kit provides a practical roadmap to help you get started.

Validity of the NABL Approval

Once an applicant obtains the certificate, its validity extends for a period of two years. NABL conducts annual surveillance as part of its process. To ensure continuous certification, the CAB is required to apply for license renewal prior to its expiration, ideally six months in advance.

Click on apply link for NABL Approval: https://nablwp.qci.org.in/Home/index

Build a Compliant and Digitally Enabled Diagnostic Lab

NABL accreditation is built on strong processes, quality systems, and efficient laboratory operations. Whether you are setting up a new diagnostic center or upgrading existing workflows, having the right resources and technology can simplify compliance and improve performance. Explore solutions like the Diagnostic Lab Starter Kit and laboratory information system software to create a more efficient, future-ready laboratory.

Also Read: Benefits of cloud-based pathology software

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Frequently Asked Questions

NABL stands for National Accreditation Board for Testing and Calibration Laboratories. It is an accreditation body established to provide a framework for assessing the calibre and technical competence of testing and calibration laboratories.

NABL standards are applicable in all kinds of laboratories, including institutional research laboratories. However, in the medical diagnostic industry, NABL standards are seen as a quality assurance procedure that includes internal and external reviews at par with worldwide quality standards.

NABL accreditation benefits healthcare service providers by providing proof of quality assurance to clients, aligning with international standards for higher product reach, and reducing investment in repeated testing and research.

NABL accreditation benefits people by providing reliable and accurate reports without the need for re-testing. NABL labs are also cost-effective as pricing is controlled by the accrediting body. Customers can use the NABL website or Directory of Accredited Laboratories to search for and locate the laboratories that meet their specific standards and are accredited by NABL.

Yes, NABL is the only certification body acknowledged by the Indian government that provides a neutral assessment of technical competence and lab standards. Additionally, NABL has links with the International Laboratory Accreditation Cooperation (ILAC) and the Asia Pacific Laboratory Accreditation Cooperation.

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