Uromastyxman, I feel you may be looking at this from the wrong angle. Of course, we are all passionate keepers, who want the best for the hobby, the individuals and the animals, but i feel individual licensing of keepers is complex, unworkable and undesired by government.
It would be very expensive and convoluted to organise, test and follow up. Ensure care requirements are being maintained would be a massive undertaking to go round all keepers homes and ensure they are toeing the line.
A much easier and simpler solution, would be to hit the source. Further, more restrictive licensing for pet shops, ensuring they have the knowledge and will to impart correct advice (or at least show where correct advice can be found) before a license to sell reptiles is given, would be a much simpler idea. The shops will be open for spot inspections and testing to ensure they havent slipped away from the proper route.
On top of this, we can do what is already being implemented. Self regulation. The FBH have (in the original thread from which this split) offered advice and guidance on the sale and purchase of large snakes, which pets can/will offer to customers to ensure they are fully prepared for their purchase.
This is just a start, and can be stretched out a to a more generalised set of guidelines which store owners (armed with their previous knowledge) can expand upon dependant upon the sale.
I would like to see (and believe it may already be in Chris's mind) a scheme similar to that offered by OATA, with courses run for store owners and employees to keep them up to date on the latest ideas etc.
The harder area to hit is private sales, but wheels are turning for the likes of preloved, gumtree, etc and people with facebook groups should be encouraged to follow these guidelines too, to ensure proper sales and the safety of animals.
It is a sad fact of like that some 'bad uns' will slip through and get away with neglect and abuse, and they should be found out by the hobby and dealt with by the authorities, but the good majority should not be forced through unnessecary legislation because of it.