A C card is more like a diploma than a license.
A license is something you need to do X, is mandatory and is renewed periodically.
Licenses require an administrative body, police and judge like body to enforce expectations of licenses [skills, knowledge etc.,] and continued relationship between licenser and licensee. A license has legal implications. The licenser needs oversight against corruption and abuse.
A diploma comes from an institution primarily for education, and often is simply 'accredited' without government regulation in regards to a taught curricula. How you use your diploma, and how others accept your 'education' is fully undefined, and is left from user to user, or employer to employer.
Licenses provide some measure of protection of the licensee and public but often its proportional to the cost, usually the fee charged to the licensee. Licenses are often used if the public good is at stake, and foregone if deficiencies affects only the individual so trained. E.g. In the USA you don't need a license to off road vehicle use, but you do once on public roads.
We all experience how efficient licenses are, e.g. driver license, restaurant licenses, sanitation licenses etc., in terms of safety, road fatalities and food poisoning events. A licensee is only required to show competence between renewal dates, what happens in between? Nothing is going to stop DIC diver just recertified A++ by NSSCDS from carving his face on the Henkel if he chooses.
For C cards, if the only injured party is the C-card holder, personal responsibility requires one keep up with skills, and that is purely on the c-card holders own judgment to take a refresher course.
For preventing damage to caves or whatever cultural resource, what is needed is some form of police force to catch offenses, apprehend the offender and a body to provide punishment. Damage can be from vandalism or simply poor skills, forcing the said diver to repair his errs. This is easier said than done: consider the errant diver who chooses to sue his accusers, or the legal cost to defend an accusation even if its small claims. Regardless of the problems raised regarding this 'cave police', I do not think mandatory recerts is the answer to avoiding cave injury or preventing vandalism.


Reply With Quote

Bookmarks