How to Get NABL Accreditation for Your Pathology Lab: Complete Guide, Common Challenges & Proven Solutions

August 3, 2026

Getting NABL accreditation is one of the most important milestones for any pathology lab in India. It signals to patients, doctors, and insurers that your test results meet ISO 15189 quality standards. But the process is detailed, document-heavy, and easy to get wrong the first time. Here is a clear, practical guide to the process, the most common roadblocks labs face, and how to solve them.

What Is NABL Accreditation?

NABL (National Accreditation Board for Testing and Calibration Laboratories) accreditation is a formal recognition that your pathology lab is technically competent to perform specific tests accurately and consistently. It is based on ISO/IEC 15189, the international standard for medical laboratories, and is administered under the Quality Council of India.

The Accreditation Process, Step by Step

1. Assess readiness against ISO 15189 requirements and identify gaps.
2. Build a documented Quality Management System (QMS) covering SOPs, equipment calibration, and staff competency.
3. Apply online through the NABL portal and submit the required documents.
4. Undergo a pre-assessment (optional but recommended) to catch gaps early.
5. Host the on-site assessment, where NABL assessors review your processes, records, and proficiency testing results.
6. Close out any non-conformities raised during assessment within the given timeline.
7. Receive accreditation, typically valid for two years, subject to surveillance visits.

Common Challenges Labs Face

• Incomplete or inconsistent documentation across departments.
• Staff not trained on the QMS they are expected to follow daily.
• Poor equipment calibration and maintenance records.
• Weak internal quality control and proficiency testing participation.
• Underestimating the time and cost required for the full process.

Proven Solutions

Most of these challenges trace back to one root cause: manual, paper-based record-keeping that cannot hold up under audit. Labs that move to a structured, digital Laboratory Information Management System find it far easier to maintain consistent SOPs, track calibration schedules, log corrective actions, and generate the audit trail NABL assessors expect.

At ATM Softek Pvt Ltd, our pathology lab software is built with this exact requirement in mind. It centralizes document control, automates equipment and reagent tracking, and keeps a complete, timestamped record of every test and correction, so labs walk into assessments prepared rather than scrambling.

Is NABL Accreditation Worth It?

Yes. Accredited labs typically see higher trust from referring doctors, better empanelment terms with insurers and corporates, and stronger patient confidence. The upfront effort pays off in long-term credibility and business growth. Many labs also report fewer repeat tests and complaints once standardized, accredited processes are in place, which further improves patient satisfaction and lowers operational costs over time.

Frequently Asked Questions

Q: How long does NABL accreditation take?

A: Most labs complete the process in 8 to 14 months, depending on how prepared their documentation and processes are before applying.

Q: What is the validity period of NABL accreditation?

A: NABL accreditation is valid for two years, with periodic surveillance visits to confirm continued compliance.

Q: Can small or single-branch labs apply for NABL accreditation?

A: Yes. NABL accreditation is open to labs of all sizes, though scope of accreditation can be limited to specific test categories.

Q: Does lab software help with NABL accreditation?

A: Yes. A digital LIMS like the one from ATM Softek Pvt Ltd simplifies document control, calibration tracking, and audit trail generation, which are core NABL requirements.

Q: What happens if non-conformities are found during assessment?

A: Labs are given a defined timeframe to submit corrective action reports; accreditation is granted once these are reviewed and accepted.