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If you want to join the Merchant Navy, there is one document you cannot sail without: the CDC. The Continuous Discharge Certificate is your professional identity at sea, and no shipping company will let you board a vessel without it.
For a 12th-pass student dreaming of a career on ships, the CDC application can feel confusing. Which website do you use? What documents do you need? How much does it cost? This guide answers every one of those questions in plain language.
By the end, you will know exactly how to apply for your Indian CDC, what it costs, how long it stays valid, and how it fits into your wider Merchant Navy journey.
What Is a CDC (Continuous Discharge Certificate)?
A CDC is an official document issued to seafarers by the Shipping Master under the Directorate General of Shipping (DG Shipping). Think of it as a passport for your career at sea.
It serves two main purposes:
- Identity proof — it confirms you are a registered, qualified seafarer.
- Sea service record — it logs every ship you sail on, your rank, and your joining and sign-off dates.
Inside the CDC(Continuous Discharge Certificate) booklet, you will find:
- Your personal details
- Passport information
- Photograph and signature
- Sea service entries
- Names of ships you have served on
- Official endorsements and stamps
In short, the CDC becomes the official record of your entire sailing career. Without it, you cannot legally join most vessels on international voyages.
Who Needs a CDC?
Anyone planning to work on board a merchant ship needs a CDC. This includes both officers and ratings, across the deck, engine, and saloon departments.
You need a Continuous Discharge Certificate if you are:
- A deck cadet or trainee navigating officer
- A marine engineering student or trainee engineer
- A GP rating (General Purpose rating)
- An engine or saloon rating
- Any seafarer joining a vessel engaged in international voyages
If your goal is a career at sea after the 12th, the Continuous Discharge Certificate is one of the first professional documents you will need once your training is complete. Want to understand the full route into the industry first? Start with our breakdown of Merchant Navy courses and career paths.
Eligibility Requirements for a CDC
Before you apply, you must meet the basic eligibility set by DG Shipping. Missing even one of these will stall your application.
Here is what you need:
| Requirement | Details |
|---|---|
| Citizenship | Must be an Indian citizen |
| Age | At least 18 years old |
| Education | Passed 10th standard from a recognised board (10th and 12th for most officer courses) |
| Passport | A valid Indian passport |
| INDOS number | A valid INDOS (Indian National Database of Seafarers) number |
| Medical fitness | Valid medical certificate from a DG-approved doctor (Annexure IV & V) |
| Training | Completed Basic STCW safety training and security training (STSDSD or SSO) |
A quick word on STCW courses
STCW stands for the Standards of Training, Certification and Watchkeeping. These are the mandatory safety courses every seafarer must complete before sailing. They usually cover:
- Personal survival techniques
- Fire prevention and fire fighting
- Elementary first aid
- Personal safety and social responsibility
- Security training and designated security duties
Takeaway: Confirm your INDOS number, valid passport, medical fitness, and STCW certificates are all in hand before you start. These four are the most common reasons applications get delayed.
Documents Required to Apply for a CDC
Keeping your documents ready before you log in saves you hours of frustration. Upload errors and blurry scans are among the top causes of rejection, so prepare each file carefully.
| Document | Format & Notes |
|---|---|
| Passport-size photograph | White background, 3.5 cm x 3.5 cm, JPG |
| Scanned signature | Black ink, 1.5 cm x 3.5 cm, JPG |
| Passport | Colour scan of original, single PDF |
| 10th certificate / mark sheet | Colour scan of original, PDF |
| Medical fitness certificate | Annexure IV & V from a DG-approved doctor, single PDF |
| Address proof | Aadhaar, Passport, Voter ID, or Permanent Driving Licence |
| INDOS certificate | Required for login and verification |
| STCW certificates | Proof of completed safety courses |
A few simple rules for your uploads:
- Keep every file clear and properly scanned.
- Stay within the prescribed file sizes.
- Make sure your name, date of birth, and passport number match exactly across all documents.
That last point matters most. A single spelling mismatch between your passport and your certificates is enough to get your application held up.
Step-by-Step Process to Apply for an Indian CDC
Here is the full application process, broken into clear steps. The entire process is completed online through the official DG Shipping portal.
Step 1: Visit the DG Shipping website
Go to the official Directorate General of Shipping website and select the E-Governance section.
Step 2: Log in
Use your INDOS number as your user ID and enter your E-Governance password.
Step 3: Open the CDC application
Navigate to “Continuous Discharge Certificate Management & COC as Cook”, then select “Submit Application” followed by “Continuous Discharge Certificate Application”.
Step 4: Fill in your personal details
Enter your name, date of birth, passport details, and educational details. Check each field twice. The details must match your passport exactly.
Step 5: Add your address details
Enter your current address and contact information. Make sure your address matches your address-proof document.
Step 6: Enter next of kin details
Provide information about your next of kin, usually your father or mother.
Step 7: Add STCW and medical certificate details
Enter the details from your medical certificate. Your STCW course details are usually auto-generated from the system once your records are matched.
Step 8: Upload your documents
Upload each required document in the correct format. Double-check that scans are clear and the right files are attached.
Step 9: Complete the payment
Pay the application fee online. The standard Continuous Discharge Certificate application fee is INR 700.
Step 10: Declare and submit
Agree to the declaration, generate your application number, and submit the form. Save your application number, you will need it to track your status.
Step 11: Track your application
Use your application number on the status page to follow your progress. The status moves through these stages:
- Submitted
- Under verification
- Approved
- Printed
- Dispatched
Step 12: Receive your CDC by post
Once approved, your new Continuous Discharge Certificate booklet is dispatched by speed post from the concerned shipping office.
Takeaway: The process itself is simple. Most delays come from document mismatches, not the application form, so verify everything before you hit submit.
CDC Application Fees
Cost is one of the first questions students ask, so here it is clearly:
| Item | Fee |
|---|---|
| CDC application fee | INR 700 (paid online) |
This fee is for the application itself. Costs for your STCW courses, medical examination, and passport are separate and paid before you apply. Always confirm the latest fee on the DG Shipping portal, as government charges can change.
CDC Validity and Renewal
Like a passport, your Continuous Discharge Certificate does not last forever. It has a fixed validity, and you must renew it to keep sailing.
You should begin the renewal process if:
- Your Continuous Discharge Certificate is within 6 months of expiry
- The pages are nearly full with sea service entries
- The booklet is damaged
- Your details need correction
Renewal vs replacement
These two terms confuse many seafarers, so here is the difference:
| Type | When you need it |
|---|---|
| CDC Renewal | Validity is expiring, more pages are needed, but the booklet is still usable |
| CDC Replacement | The CDC is lost, badly damaged, torn, or unreadable (a duplicate is issued) |
The renewal process is also done online through the DG Shipping portal. You log in with your INDOS number, verify your details, upload your old Continuous Discharge Certificate and supporting documents, and submit. After approval, a renewal sticker is placed on the designated endorsement page of your booklet.
A few quick rules for renewal:
- Apply at least 6 months before expiry to avoid missing a joining date.
- Never laminate over the renewal sticker.
- If your Continuous Discharge Certificate is lost, file an FIR first, then apply for a duplicate.
Takeaway: Treat your Continuous Discharge Certificate like your passport. Renew early, keep it safe from water damage, and check the expiry date regularly.
How the CDC Fits Into Your Merchant Navy Career
The Continuous Discharge Certificate is not a one-time formality. It travels with you through your entire career and supports almost every major milestone.
Your Continuous Discharge Certificate is needed for:
- Joining ships and signing on as crew
- Immigration clearance at ports
- Visa processing for foreign voyages
- Promotion eligibility to higher ranks
- Competency examinations for higher certificates
The sea service recorded in your Continuous Discharge Certificate becomes the proof you submit when applying for higher Certificates of Competency (COC) and rank upgrades. In other words, every voyage you log today builds the record that powers your promotions tomorrow.
But here is the honest truth: the Continuous Discharge Certificate comes near the end of your entry process, not the start. Before you reach this stage, you first need to clear the right entrance exam and secure admission or sponsorship. That is where most aspirants struggle, and where the right guidance changes everything.
How Skills Station Helps You Prepare
The Continuous Discharge Certificate process is straightforward once you qualify. The harder part is getting into the Merchant Navy in the first place, clearing IMU-CET, securing sponsorship, and passing your interviews. This is exactly where Skills Station comes in.
At Skills Station, we are a dedicated Merchant Navy academy in Dehradun that prepares students for every step from the classroom to the open sea.
Here is what sets us apart:
- Personalised attention — small batches of just 25 students, so you are never lost in a crowd.
- Exam-ready preparation — focused IMU-CET coaching with mock tests and sponsorship guidance.
- Communication and interview training — the skills that help you clear sponsorship rounds, not just written exams.
- Online and offline coaching — choose offline classes for a hands-on experience or online coaching for full flexibility.
- Proven results — our students have joined top companies like Anglo Eastern, TORM Tankers, and Synergy.
If you are confused about which path to take, whether it is DNS, B.Tech Marine Engineering, or Nautical Science, we will guide you. Book a free consultation and get your doubts cleared by experts who know the industry inside out.
Admissions for 2026 are open, and seats are limited to maintain our small-batch quality. Secure yours before the batch fills.
Frequently Asked Questions (FAQ)
What is a CDC in shipping?
A Continuous Discharge Certificate is both an identity document and an official record of sea service issued to seafarers by the Shipping Master under the Directorate General of Shipping.
Who issues the Indian CDC?
The Shipping Master, under the Directorate General of Shipping (DG Shipping), issues the Indian Continuous Discharge Certificate.
What is the minimum age to apply for a CDC?
The minimum age is generally 18 years, as the Continuous Discharge Certificate is linked to your eligibility for employment on board ships.
How much does an Indian CDC cost?
The standard Continuous Discharge Certificate application fee is INR 700, paid online through the DG Shipping portal. STCW course, medical, and passport costs are separate.
Is medical fitness compulsory for a CDC?
Yes. You must submit a valid medical fitness certificate (Annexure IV & V) from a DG-approved doctor.
Can I apply for a CDC after the 12th?
Yes. Once you complete your approved maritime training and STCW courses and meet the eligibility criteria, you can apply for your Continuous Discharge Certificate. Your education requirement depends on the course and rank you are aiming for.
How long does the CDC application take?
Timelines vary by shipping office and document accuracy. You can track every stage online using your application number, from “Submitted” to “Dispatched”.
Can I renew my CDC after it expires?
Yes, but you should start the renewal process at least 6 months before expiry to avoid missing a joining date.
What should I do if I lose my CDC?
File an FIR, then apply for a duplicate Continuous Discharge Certificate along with all supporting documents through the DG Shipping portal.
How many pages does a CDC have, and what if they fill up?
If your Continuous Discharge Certificate pages are full, you can apply for additional pages or a new Continuous Discharge Certificate booklet. Do not continue sailing without space for service entries.
Conclusion: Your Career at Sea Starts With the Right First Step
Applying for an Indian CDC is simpler than it looks. Meet the eligibility criteria, keep your documents accurate and matching, apply online through the DG Shipping portal, pay the INR 700 fee, and track your status until your booklet arrives.
But remember: the CDC is just one document in a much bigger journey. Before you reach it, you need to clear IMU-CET, secure sponsorship, and pass your interviews, and that is where preparation makes the difference between dreaming about the sea and sailing on it.
If you are a 12th-pass student ready to build a career in the Merchant Navy, do not navigate it alone. Book your free consultation with Skills Station today and let our experts guide you from your first exam to your first ship. Seats are limited, so apply now.
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