You have bought a handheld VHF for your boat. What does holding the SRC primarily prove?
Short answer
That the operator is competent to use marine VHF
The SRC is the operator qualification for the relevant marine VHF and VHF/DSC procedures. Equipment licensing, suitability and permission for a local service are separate checks.
Quick check
You have bought a handheld VHF for your boat. What does holding the SRC primarily prove?