In this article, Daguer Logistics breaks down what ROC means in the context of shipping and how it impacts maritime operations.
In the complex world of global shipping, acronyms are a common part of daily operations. One such acronym you may encounter in maritime logistics is ROC. But what does ROC mean in shipping, and why is it important?
For maritime professionals and logistics operators working across U.S. and Canadian coastal waters, understanding ROC is essential for regulatory compliance and safety. In this article, Daguer Logistics breaks down what ROC means in the context of shipping and how it impacts maritime operations.
ROC in the context of maritime logistics refers to the Restricted Operator Certificate – Maritime Commercial (ROC-MC).
This certificate is a radio qualification required for mariners who operate GMDSS (Global Maritime Distress and Safety System) equipment aboard commercial ships operating within designated sea areas. It is a mandatory credential for those working within specific maritime communication zones, particularly Sea Area A1 as defined by Innovation, Science and Economic Development Canada (ISED).
To fully understand ROC, it’s important to first explore what GMDSS is and why it matters in shipping.
The Global Maritime Distress and Safety System (GMDSS) is an internationally agreed-upon set of communication protocols and equipment requirements developed by the International Maritime Organization (IMO). The system ensures that ships can:
· Transmit and receive distress alerts
· Maintain communication with rescue coordination centers
· Communicate effectively during emergencies
· Access weather and navigational updates
1. Sea Area A1 – within VHF range (approx. 20–40 nautical miles) of shore-based DSC-equipped stations
2. Sea Area A2 – within MF range (up to 150–200 nautical miles)
3. Sea Area A3 – covered by Inmarsat geostationary satellites
4. Sea Area A4 – polar regions outside the Inmarsat coverage area
The ROC-MC is applicable only for Sea Area A1, making it a foundational qualification for coastal and near-shore shipping operations.
The Restricted Operator Certificate – Maritime Commercial (ROC-MC) is the minimum required radio operator certification for mariners working in North American Sea Area A1. It is issued under national regulations (in Canada by ISED) and aligns with SOLAS (Safety of Life at Sea) standards.
· Authorizes use of VHF DSC (Digital Selective Calling) radios on board
· Enables mariners to transmit and receive distress, urgency, and safety communications
· Provides basic training in radio procedures for emergency situations
· Ensures proficiency in GMDSS operations specific to A1 waters
· Tugboat operators
· Ferry crews
· Coastal cargo vessel crews
· Maritime logistics personnel operating short-range routes
The ROC-MC is mandatory for:
· Masters, mates, and deck officers on GMDSS-equipped commercial vessels within A1 sea areas
· Radio operators on vessels engaged in maritime trade along the U.S. and Canadian coasts
· Logistics and transport companies managing coastal shipping fleets
If your vessel is operating with VHF DSC equipment in North American waters, at least one qualified crew member must hold a valid ROC-MC.
1. Be at least 18 years of age
2. Complete an approved ROC-MC training program
· Basic radio operation
· GMDSS communication protocols
· Emergency call procedures
· Equipment setup and troubleshooting
The course typically includes 8–16 hours of classroom or virtual instruction and hands-on training.
Upon passing, the candidate receives a certificate valid for life, unless revoked.
When preparing for certification or actively operating under ROC, several tools and documents are essential:
· VHF DSC Radio Manuals
· Ship Station License (assigned by the country’s telecommunications agency)
· GMDSS logbook for recording transmissions
· Emergency Communication Checklists
· Digital Selective Calling Equipment
Daguer Logistics provides support for fleets in sourcing and maintaining the correct documentation and radio systems in compliance with North American maritime laws.
Maritime operators must comply with both international and national regulatory bodies:
· Innovation, Science and Economic Development (ISED) – certifies ROC-MC in Canada
· Transport Canada – maritime safety enforcement
· Federal Communications Commission (FCC) – radio certification and licensing
· U.S. Coast Guard (USCG) – maritime safety and inspection
Daguer Logistics helps companies manage compliance across both sides of the U.S.-Canada border, streamlining operations and reducing risk.
Ensures communication readiness during maritime emergencies
Avoid penalties and delays by adhering to GMDSS rules
Allows crews to coordinate with coastal stations and other vessels quickly
Enables use of Sea Area A1 without additional crew certifications
Improves hiring opportunities and fleet reliability
· Vessel equipment compliance reviews
· ROC and GOC consultation
· Coastal delivery coordination (U.S. and Canada)
· Document processing and customs support
With hubs in Southern California, we serve logistics teams navigating the regulatory complexity of coastal and inland shipping corridors.
Whether you’re moving bulk goods by barge, shipping parts by ferry, or managing tugboats in Sea Area A1, Daguer Logistics ensures your operation stays compliant with ROC requirements. We simplify maritime communication certifications, customs, and coast-to-coast fulfillment.
ROC stands for Restricted Operator Certificate. Specifically, ROC-MC is required to operate GMDSS equipment on commercial vessels in Sea Area A1.
Yes, if you operate GMDSS-equipped vessels with VHF radios in coastal zones. U.S. operators must comply with FCC rules.
Enroll in a recognized training course approved by ISED (Canada) or equivalent U.S. programs, then pass the written/practical exam.
While primarily issued at the national level, ROC-MC adheres to IMO and SOLAS standards, making it recognized in international maritime law.
You may face fines, vessel delays, or safety violations during inspections by Coast Guard or regulatory agencies.
