mix-ups, cross-contamination, and non-compliance.

2. Scope

This SOP applies to all equipment, instruments, and work areas within the Analytical Method Development department where testing or method development is performed.

3. Responsibilities

• Analytical Scientist: Conducts line clearance checks and documents status prior to analysis.
• QC/QA Officer: Reviews and verifies that clearance is complete and compliant.
• Lab Supervisor: Approves the clearance checklist and authorizes continuation of activity.

4. Accountability

The Head of Analytical Method Development is accountable for ensuring that all equipment and workspaces are free from previous batch residues, documents, and test materials before use.

5. Procedure

5.1 Development of Line Clearance Checklist

1. Prepare a line clearance checklist that includes:
   • Previous sample labels and remnants removed
   • Waste bins emptied and cleaned
   • Glassware cleaned and dried
   • Workbenches wiped with disinfectant
   • Instruments logged off and blank runs completed
2. Include unique identification number for traceability (Annexure-1).

5.2 Execution of Line Clearance

1. Ensure all documents related to previous analysis are archived.
2. Dispose of waste media, reagents, swabs, and vials as per lab disposal SOPs.
3. Cross-check instruments and reference standards for batch-specific setup.
4. Fill the line clearance checklist and sign off by analyst and supervisor.

5.3 Verification and Authorization

1. QC/QA personnel verify completion of checklist items.
2. QA reviewer signs the checklist and permits start of analytical activity.
3. Checklist to be filed with method validation or analysis batch record.

5.4 Re-clearance Requirement

1. Perform re-clearance if:
   • Any deviation occurs during testing
   • Testing is interrupted for more than 8 hours
   • Any suspected mix-up is reported

5.5 Documentation and Storage

1. Maintain clearance records for at least 3 years.
2. Ensure all logs are traceable by equipment ID and analysis number.

6. Abbreviations

• SOP: Standard Operating Procedure
• QA: Quality Assurance
• QC: Quality Control
• AMD: Analytical Method Development

7. Documents

1. Line Clearance Checklist – Annexure-1
2. Line Clearance Authorization Log – Annexure-2
3. Deviation Report Log (if applicable) – Annexure-3

8. References

• ICH Q9: Quality Risk Management
• FDA Guidance for Industry: Analytical Procedures and Methods Validation
• WHO Technical Report Series No. 986: GMP for Pharmaceuticals

9. SOP Version

Version: 2.0

10. Approval Section

	Prepared By	Checked By	Approved By
Signature
Date
Name	Vaishali Menon	Rohit Khanna	Sunita Reddy
Designation	Analyst	QA Officer	Head – AMD
Department	Analytical Method Development	QA	Analytical Method Development

11. Annexures

Annexure-1: Line Clearance Checklist

Item	Status (Yes/No)	Remarks
Previous labels removed	Yes	NA
Work area disinfected	Yes	Cleaned with 70% IPA
Instruments logged off	Yes	HPLC ID #HP-202

Annexure-2: Line Clearance Authorization Log

Date	Analyst	QA Reviewer	Status	Remarks
20/05/2025	Meena R.	Rohit Khanna	Approved	Clearance Verified

Annexure-3: Deviation Report Log

Deviation ID	Date	Description	Corrective Action	Approved By
DEV/AMD/042/2025	18/05/2025	Residual label found	Training on disposal	QA Head

Revision History:

Revision Date	Revision No.	Details	Reason	Approved By
21/05/2025	2.0	Included authorization log and deviation management protocol	Annual Review	Sunita Reddy
10/05/2022	1.0	Initial SOP Release	New SOP	QA Head