windapp
Contributor
Here is what I think a non-professional C card means:
At one point in time, the holder of the card demonstrated the knowledge and skills necessary to obtain that card.
In the case of your OW card, it means that you can plan and execute dives in the environment you were trained, and you know enough not to execute dives for which you are not qualified. That way, your loved ones can't sue dive operations based on them letting you dive when you aren't trained and knowledgeable about the sport.
Since you are only responsible for yourself, there wouldn't be a lot of point to revoking the card.
At one point in time, the holder of the card demonstrated the knowledge and skills necessary to obtain that card.
In the case of your OW card, it means that you can plan and execute dives in the environment you were trained, and you know enough not to execute dives for which you are not qualified. That way, your loved ones can't sue dive operations based on them letting you dive when you aren't trained and knowledgeable about the sport.
Since you are only responsible for yourself, there wouldn't be a lot of point to revoking the card.