Proficiency
From WoWWiki
Proficiency refers to a character’s training in a profession. Listed in the table below is the level and skill required to advance to each proficiency. For weapon and armor proficiencies, see Per Class Proficiencies.
| Proficiency | Level | Skill |
|---|---|---|
| Apprentice | 5 | 1 - 75 |
| Journeyman | 10 | 50 - 150 |
| Expert | 20 | 125 - 225 |
| Artisan | 35 | 200 - 300 |
Master  | 50 | 300 - 375 |
