Officially, there is no saltwater guiding license. There are however, requirements for you to meet as the operator of the vessel.
Marine First Aid
transport Canada approved commercial safety gear
ROC-M w DSC
liferaft if you intend to fish offshore...and upgrade to Med A2 as well.
Get your vessel inspected by transport Canada for equipment approval with thru hulls etc etc
never mind getting a CTAG as it is a total waste of time and money and it means nothing...I know, I have one.
so...are you going to be an owner operator? Are you going to affiliate yourself with an established firm? Where are you going to get clients? Making money isn't easy in this business in the long run.
Where are you hoping to set up shop? do you have a business plan?
This coast isn't a good place to set up shop right now and there are a lot of operators and firms giving up and folding. You may make some bucks at first, but when you need to replace engines etc etc, it adds up a hurry.
I have just scratched the surface.....still interested?