Key takeaways
- ✓SRC and LRC are for vessels not covered by SOLAS — most leisure yachts.
- ✓ROC and GOC are for SOLAS ships — merchant vessels and large commercial yachts.
- ✓The short-range certificates (SRC, ROC) cover Sea Area A1: within VHF range of a coast station.
- ✓The long-range certificates (LRC, GOC) add MF/HF and satellite equipment for passages further offshore.
The four certificates side by side
| Certificate | For which vessels | Where | Equipment |
|---|---|---|---|
| SRC — Short Range Certificate | Non-SOLAS vessels (most yachts) | Sea Area A1 (VHF range of a coast station) | VHF with DSC |
| LRC — Long Range Certificate | Non-SOLAS vessels | Any sea area | VHF, MF/HF and satellite systems |
| ROC — Restricted Operator’s Certificate | SOLAS ships | Sea Area A1 only | VHF-based GMDSS equipment |
| GOC — General Operator’s Certificate | SOLAS ships | Beyond Sea Area A1 (A2, A3, A4) | Full GMDSS: VHF, MF/HF, satellite |
What are the sea areas?
- •A1 — within VHF range of a coast station with DSC (roughly coastal waters)
- •A2 — within MF range of a coast station
- •A3 — within coverage of the geostationary satellite system (most oceans)
- •A4 — the polar areas outside A1–A3
Which one do you need?
For leisure yachts and most delivery work on yachts that are not SOLAS ships, the SRC is the usual minimum, and an LRC is useful for ocean passages with MF/HF or satellite equipment. Deck officers on ocean-going SOLAS ships must hold a GOC under the STCW Convention; the ROC is for SOLAS vessels that stay within Sea Area A1.
Commercial yacht endorsements and many delivery contracts also expect a valid radio certificate — check the requirements for the vessel before you go.
Add your radio certificate to your Maritime Delivery profile — clients filter crew by certificate, and our team verifies it before it shows as checked.
Frequently asked questions
What is the difference between the SRC and the ROC?+
Both cover short-range VHF communication in Sea Area A1. The SRC is for vessels not covered by SOLAS, such as most yachts; the ROC is for SOLAS ships operating only within Sea Area A1.
Do I need a GOC to work on a yacht?+
Only if the yacht is a SOLAS vessel (or certified as one) operating beyond Sea Area A1, or if your role requires it. Most smaller yachts need an SRC, sometimes an LRC for offshore passages.
Is the VHF SRC enough for an Atlantic crossing?+
The SRC covers VHF only. For ocean passages the boat usually carries MF/HF or satellite communication, which the LRC (for non-SOLAS vessels) covers. Check what equipment the boat carries and what the skipper requires.
Sources
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