I'm not sure, but we ski in the Grandvalira in Andorra and the Ski School there 'Grade' you - there are even level grading tests you can take, so I assume on some level this must be an established system. You are assessed on day 1 (if you've bought tuition) and put into groups based on 'level' and 'sub level' so Low level 2, high level 2, low level 3, high level 3 and your level will determine your 'proficiency' which gives you a guide as to what runs you should aim for and what routes the instructor takes and what skills they need to teach you - if you're still snow ploughing they can't take you on a black run can they?
Originally Posted by Andrew_C
It roughly goes something like this in the Grandvalira:
Low Level 1/Beginner - Green slopes
High Level 1 - Greens and easy blues
Low Level 2 - Easy to moderate blues
High Level 2 - All Blues
Low Level 3 - Hard Blues, Easy Reds
High level 3 - Moderate to Hard Reds
Level 4 - Black runs and Off-piste
There are some overlaps and places where the instructors challenge you, but generally if you are a level 2 proficient you should be sticking to blue runs. This is a rough guide and not 'absolute' but it's pretty much how it works in Andorra.