Credential Consulting

Diamond Marine Services offers a unique service with experienced National Maritime Center trained evaluators on our credential consulting team. If you are preparing an application for an original USCG 6 Pack or Master, we can help you! If you already hold a license and are tired of sifting through CFRs and NMC checklists wondering if you have enough sea time or completed the necessary requirements for an upgrade, we can help you! Have you experienced delays or even have a license expire due to an issue with a previous application? Our experienced team works hard to make this complicated process easy for you!

  • Ensure you apply for the highest possible credential
  • Pre-fill any required forms so all you have to do is sign the application
  • Collect, organize, and prepare all medical, drug test, sea service, and course completion certificates for submission
  • Vet your application prior to submission to ensure all forms are properly filled out
  • Pay any USCG evaluation and issuance fees (optional)
  • Electronically file your application directly with the USCG
  • Reduce hassle by handling communication with the NMC on your behalf
  • Represent you through a formal appeal process, if necessary
Diamond Marine Services not only takes all the hassle out of applying for an original license, raise-in-grade, modification or renewal, we formally evaluate your application by a professional using the same process as the NMC. We submit your credential with the USCG and support you until it is issued.

How does this work?

We keep our costs low by handling the entire process electronically. From document collection to application submission, everything is done online. Paper applications submitted to our office are subject to extra charges. Throughout the process, our staff is available via email, phone or text to help you along the way. We encourage you to interact with our team and have real help, from real experts, every step of the way!

Phase 1 - Get Started!

If you are a new client, we get things rolling by completing two simple steps:
    1. Hit the START button below and register a new password protected profile. Once registered, complete the START form to get our team the required information to pre-fill the application for you
    2. Complete the payment step through our secure payment gateway or reach out to our team to make the payment if you are unsure of what payment to make or if you have any questions!
If you are an existing client returning to renew or upgrade your credential, please reach out to our team via phone, text or email and we will point you in the right direction!

Phase 2 - Roadmap and Portal Uploading

Once our team receives your START form and payment, we will send you a roadmap via email.
    1. Follow the step by step instructions to complete the tasks outlined in your roadmap. Our team loves helping you and remains available every step of the way should you have any questions about ANY of the required tasks.
    2. Upload your required documents to your secure portal.
    3. After you have completed the roadmap and uploaded your documents, please let our team know by hitting the “FUSE MY APPLICATION” button in your portal. Our team will work to prepare your application and then send you a punch list of any items that need to be adjusted.

Phase 3 - Submit and support your application

Once your application is reviewed by our team, we submit your application to the USCG and remain available every step of the way until your license is in your hand! As a reminder, our team remains by your side every step of the way!

Check out some recent reviews of our credential consulting

Avg: 5.00 Stars based on 183 reviews.
Reviews Date
I want to hold your hand
February 14,2024
Sam and his crew at Diamond Marine Services do just that, Hold your hand. The lengthy, confusing and time consuming process of Renewing a Merchant Marine license was accomplished with the their great assistance. Lots of i dotting and t crossings were performed to insure my license was renewed and awarded the upgrade it was qualified to receive. Thank you for Holding My Hand, see you in a couple of years with help on upgrade and future renewals Cpt. Michael

-- Michael Richmond
February 8,2024
these guys will hold your hand till you get your credentials! strongly recommend to anyone trying to get their captain license

-- william norris
Navigating Through Stormy Seas with Diamond Marine Services
January 22,2024
★★★★★ January 22, 2024 Navigating the complex USCG application process can be daunting, but my experience with Diamond Marine Services, led by the incomparable Sam, was nothing short of extraordinary. As someone familiar with the importance of efficient, customer-focused service, I found Sam and his team to exemplify this at every turn. My journey wasn`t without its hurdles. Despite my application being approved for 12 months (to complete my training and submit it), my training completion lagged in the final month (of course December riddled with holidays) . The anxiety was palpable; I was nervous about submitting on time, and to my dismay, my application even timed out with the USCG. However, Sam, with his extraordinary commitment and an impressive escalation contact, turned the tide in my favor. His unbelievable support made the impossible possible, ensuring my application was processed successfully. Sam`s dedication and the team`s expertise in navigating the b

-- Patrick McIntyre
Best decision you will make!
January 16,2024
Sam and his team at Diamond Marine Services was the best decision I made to help guide me through the USCG application process. Their expert knowledge and experience was priceless and allows you to maximize your credential`s. When you enter unfamiliar waters, it pays to go with the experts in the area, and in this case, it was DMS. Simply the best!

-- Gerard M
Indispensable Service
January 11,2024
Sam and his team don`t just take care of everything, they go above and beyond and provide the most thoughtful and thorough service. I`m SO glad I went with DMS for my credentials. Simply the best!

-- Raphael
Check out our REVIEWS page for more!

How much does this cost?

The cost of our service depends on the application we are preparing on your behalf. The consulting fees are broken out into three tiers. At the bottom of this page, you can choose additional optional services.

Tier 3

  • Any mariner using our service for the first time

Tier 2

  • Any returning mariner using our service to renew, upgrade, or increase in scope.

Tier 1

  • Original Entry Level MMC to include OS, Wiper, Steward`s Department and Food Handler
  • Master or Mate Tonnage Upgrades up to 100 GRT

Ready to submit your information?

If you`re ready to begin the process, the Start Here button will direct you to our submission form to provide us with all the information we need to get your application going!

What if I only need some guidance?

Sea Service Evaluation
Are you are considering an upgrade or renewal and not quite sure if you have enough sea service? Do you want to upgrade your credential in the future and want some guidance as to what can you do to prepare or what you qualify for? If so, then you should check out our SEA SERVICE EVALUATION.


Sea Service Evaluation
The Sea Service Evaluation allows you to submit sea service records as a first step to see what credential you qualify for. It may also be used to answer the question: “if I want to go for a higher license, how much time and on what tonnage does it have to be for me to qualify?”

NOTE: $100 CREDIT will be issued towards a future application!


RUSH 48 – 2 Business Day turnaround
The RUSH fee guarantees a fully prepared application for USCG submission within 2 business days. Application submission is only possible if the mariner provides us with all required documentation and presumes the submitted information is in order.


Records Request Service
This optional service enables the credential consulting team to request records of previously submitted certificates and applications from the National Maritime Center on your behalf