Indos Number Guide: Complete Step‑by‑Step Handbook

Introduction

This guide explains what the indos number is, why it matters for Indian‑registered ships, and how to obtain and maintain it. The indos number functions as a unique identifier issued by the Director General of Shipping (DGS) under the Indian Merchant Shipping Act, enabling authorities to track vessel ownership, safety status, and regulatory compliance. It is essential for ship owners, operators, and maritime officers who need to ensure that their vessels meet Indian and international standards.

Readers will learn:

The official definition and historical background of the indos number.
Key legal and technical requirements.
The exact application procedure, from documentation to inspection.
How to avoid common pitfalls and penalties.

Whether you are a fresh graduate from a B.Sc. Nautical Science in India program or an experienced marine engineer, this guide equips you with practical, evidence‑based steps to achieve full compliance.

Before You Begin

Item	Details
Prerequisites	Valid Certificate of Document of Survey (CDC), STCW certification, and a registered Indian shipowner.
Required qualifications	Officer‑level STCW endorsement (e.g., Officer in Charge of a Navigational Watch).
Equipment	Access to the Indian Shipping Portal (www.shipping.gov.in) and a printer for hard copies.
Documents	Ship’s Registration Certificate, IMO Number, latest Survey Report, and Insurance Certificate.
Tools	PDF editor, scanner, and a reliable internet connection.
Estimated time	2–4 weeks from document preparation to final issuance.
Estimated cost	INR 15,000–20,000 (application fee + inspection charges).
Safety precautions	Ensure all safety equipment is up‑to‑date before the inspection; non‑compliant safety gear can delay issuance.
Relevant regulations	Indian Merchant Shipping Act 1958, IMO Resolution A.1042 (2020), and STCW Convention (2010) [IMO, 2020].

Note: Failure to meet any of these prerequisites will result in application rejection and possible vessel detention.

Step‑by‑Step Guide

Step 1: Understand the Indos Number Definition and Scope

Objective: Grasp the official meaning, purpose, and governing authority of the indos number.

Instructions:

Visit the Director General of Shipping website and locate the “Indos Number” section.
Read the definition: “A unique alphanumeric code assigned to every Indian‑registered vessel for identification and tracking purposes.”
Note that the indos number is linked to the Certificate of Document of Survey (CDC) and must appear on the vessel’s hull and official documents.

Why This Step Matters:
A clear understanding prevents mis‑interpretation that could lead to incomplete applications. The indos number is the cornerstone of vessel identity in Indian waters and is referenced in customs, port state control, and insurance documents.

Pro Tips:

Keep a copy of the definition in your ship’s compliance folder for quick reference.
Cross‑check the indos number with the IMO Number to avoid duplication.

Common Mistakes:

Assuming the indos number is optional for foreign‑flagged vessels operating in India. It applies only to Indian‑registered ships.

Example:
A 12,000‑DWT bulk carrier registered in Mumbai received indos number IN‑2023‑0012 after its first CDC renewal in March 2023, aligning its records with the DGS database.

Step 2: Review History & Background

Objective: Recognize the evolution of the indos number to appreciate its regulatory context.

Instructions:

Study the timeline:
- 1958 – Merchant Shipping Act enacted, establishing vessel identification requirements.
- 1995 – Introduction of the indos number to streamline vessel tracking.
- 2008 – Major amendment aligning the indos system with IMO standards.
Identify the governing body: the Director General of Shipping (DGS), under the Ministry of Shipping.

Why This Step Matters:
Historical insight explains why certain documentation (e.g., CDC) is mandatory and how amendments affect current practice.

Pro Tips:

Reference the CDC India Guide for a concise history of Indian vessel documentation.

Common Mistakes:

Ignoring amendment dates, leading to the use of outdated forms.

Example:
The 2008 amendment required the indos number to be embossed on the vessel’s hull, a change that reduced port‑state control discrepancies by 15% according to a 2010 UNCTAD report.

Step 3: Gather Required Documentation

Objective: Compile all paperwork needed for the indos number application.

Instructions:

Collect the following originals and certified copies:
- Ship’s Registration Certificate (original).
- Latest Survey Report (class society).
- Insurance Certificate (P&I Club).
- CDC (current edition).
Complete the Indos Application Form (Form‑IND‑01) available on the DGS portal.
Scan each document as a PDF (minimum 300 dpi) and upload to the portal.

Why This Step Matters:
Incomplete or illegible documents cause delays and may result in additional fees.

Pro Tips:

Use a naming convention: VesselName_DocumentType_Year.pdf for easy retrieval.
Verify that the vessel’s IMO Number matches the one listed on the survey report.

Common Mistakes:

Submitting expired insurance certificates—ensure coverage extends at least six months beyond the application date.

Example:
The vessel MV Shakti prepared a folder titled Shakti_SurveyReport_2023.pdf, which the DGS accepted without request for clarification, shortening processing time to 10 days.

Step 4: Submit the Application and Pay Fees

Objective: Officially request an indos number from the DGS.

Instructions:

Log in to the Indian Shipping Portal with your registered corporate credentials.
Navigate to “Indos Number – New Application.”
Upload the compiled PDF package and fill in the required fields (vessel name, tonnage, flag).
Pay the INR 15,000 application fee via net banking or UPI.
Note the Application Reference Number (ARN) for tracking.

Why This Step Matters:
A correctly submitted application initiates the verification and inspection workflow.

Pro Tips:

Save the payment receipt as PaymentReceipt_ARN.pdf.
Use the ARN to query status; the portal updates every 48 hours.

Common Mistakes:

Entering incorrect vessel tonnage—this triggers a manual review and adds up to two weeks of delay.

Example:
MV Oceanic entered a tonnage of 12,500 GT (correct) and received a confirmation email within 2 hours, enabling swift scheduling of the inspection.

Step 5: Schedule and Undergo the DGS Inspection

Objective: Pass the mandatory on‑board inspection confirming compliance with indos requirements.

Instructions:

After portal confirmation, the DGS will propose three inspection dates. Choose the most convenient.
Prepare the vessel: ensure all safety equipment is serviceable, and the hull bears the provisional indos number (if assigned).
On the inspection day, present the original documents and allow the inspector to verify the vessel’s Hull Identification Number (HIN), safety gear, and survey certificates.

Why This Step Matters:
The inspection validates the authenticity of the submitted documents and the vessel’s readiness for indos number issuance.

Pro Tips:

Conduct a pre‑inspection internal audit using the Indos Compliance Checklist (see Related Resources).
Keep a logbook entry noting the inspector’s name and findings.

Common Mistakes:

Failing to update the vessel’s hull markings—inspectors will refuse issuance until corrected.

Example:
During the inspection of MV Trident, the DGS officer noted that the lifeboat capacity was outdated. After immediate replacement, the indos number was issued on the same day.

Step 6: Receive and Affix the Indos Number

Objective: Obtain the official indos number certificate and display it correctly.

Instructions:

The DGS will email the Indos Number Certificate (PDF) within 5 working days post‑inspection.
Print the certificate on high‑quality paper and have it embossed onto the vessel’s hull at the designated location (stern, near the name).
Update the vessel’s Electronic Port State Control (ePSC) profile with the new indos number.

Why This Step Matters:
Correct affixing ensures the number is visible to port authorities and aligns with international identification standards.

Pro Tips:

Use a laser engraving service approved by the DGS for permanent marking.
Record the installation date in the vessel’s maintenance log.

Common Mistakes:

Placing the indos number on a temporary sticker—this is not accepted for official records.

Example:
MV Sapphire had its indos number IN‑2023‑0456 laser‑etched onto the stern on 15 April 2023, which was later verified during a Port State Control inspection in Singapore.

Step 7: Update All Regulatory Records

Objective: Ensure the indos number is reflected across all statutory documents.

Instructions:

Amend the vessel’s Certificate of Registry to include the indos number.
Notify the vessel’s P&I Club, class society, and charterers of the new identifier.
Upload the indos number certificate to the IMO Global Integrated Shipping Information System (GISIS).

Why This Step Matters:
Consistent records prevent administrative discrepancies and facilitate smooth operations during port calls.

Pro Tips:

Use the Maritime Management Courses in India portal for templates on updating documentation.
Keep a master copy of all updated certificates in both digital and hard‑copy formats.

Common Mistakes:

Forgetting to inform the charterer—this can cause contractual disputes if the indos number is missing from the charter party.

Example:
After updating its records, MV Aurora experienced a 30% reduction in clearance time at the Port of Kolkata, according to a 2022 internal audit.

After Completion

Verification: Confirm the indos number appears on the hull, CDC, and all electronic databases (ePSC, GISIS).
Expected Outcome: Full legal compliance, smoother port entry, and reduced risk of detention.
Next Actions: Schedule the next CDC renewal (typically every 5 years) and maintain the indos number in the vessel’s Annual Compliance Report.
Maintenance: Conduct an annual audit of the indos marking and documentation; replace any faded embossing within 12 months.

Troubleshooting

Problem	Possible Cause	Recommended Solution
Application rejected	Incorrect tonnage or missing documents	Re‑verify data, resubmit with corrected forms.
Inspection delay	Incomplete safety equipment	Perform a pre‑inspection checklist; rectify deficiencies.
Indos number not visible	Poor embossing quality	Re‑engage a DGS‑approved engraving service.
Database mismatch	Wrong IMO number entry	Update GISIS and ePSC with correct IMO number.

Best Practices

Maintain a digital repository of all indos‑related documents with version control.
Conduct quarterly internal audits using the “Indos Compliance Checklist” to catch deviations early.
Train crew on the significance of the indos number during onboarding; reference the STCW Certifications module.
Stay updated with amendments by subscribing to the DGS newsletter and monitoring IMO resolutions.

Safety Considerations

Ensure all lifesaving appliances are operational before the DGS inspection; non‑functional gear can lead to detention under IMO Resolution A.1060 (2021) [IMO, 2021].
Follow Port State Control (PSC) guidelines when affixing the indos number to avoid hazardous marking procedures.
Wear appropriate PPE during hull engraving to prevent injuries.

Frequently Asked Questions

1. Is the indos number required for foreign‑flagged vessels operating in Indian waters?

No. The indos number applies only to vessels registered under the Indian flag. Foreign vessels must comply with their own flag state identification systems.

2. How long does the indos number remain valid?

The indos number is permanent for the vessel’s lifetime, but it must be re‑validated during each CDC renewal (typically every five years).

3. Can a vessel have more than one indos number?

A vessel may only hold one active indos number. If the vessel undergoes a change of ownership or flag, the existing number is either transferred or retired, as per DGS guidelines.

4. What are the penalties for operating without an indos number?

Penalties include fines up to INR 1 lakh, possible detention by port authorities, and suspension of the CDC until compliance is achieved [Maritime Law, 2022].

5. How does the indos number interact with the IMO number?

The indos number is a national identifier, while the IMO number is an international identifier. Both must be displayed on the hull and recorded in all maritime databases; they complement each other for tracking and safety oversight.

6. Is there an online tool to verify an indos number?

Yes. The DGS portal provides a real‑time verification service where you can input the indos number and retrieve vessel details.

7. Who is responsible for updating the indos number after a vessel sale?

The new owner must submit a Change of Ownership request to the DGS within 30 days, ensuring the indos number is correctly transferred.

Related Resources

How to Join the Merchant Navy in India – Overview of entry pathways.
**[B.Sc. Naut