Does this improve quality? Of course not. Normally it is just an easy way for those in a trade to restrict the entry of new competition.
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Ranking the States on Occupational Licensing
States (Number of jobs requiring a license)
| 1. California (177) | 26. Virginia (89) |
| 2. Connecticut (155) | 27. Louisiana (88) |
| 3. Maine (134) | 28. Ohio (88) |
| 4. New Hampshire (130) | 29. Georgia (85) |
| 5. Arkansas (128) | 30. Indiana (85) |
| 6. Michigan (116) | 31. Iowa (85) |
| 7. Rhode Island (116) | 32. Utah (84) |
| 8. New Jersey (114) | 33. Delaware (83) |
| 9. Wisconsin (111) | 34. Montana (79) |
| 10. Tennessee (110) | 35. Texas (78) |
| 11. Alaska (109) | 36. New York (77) |
| 12. Massachusetts (107) | 37. West Virginia (77) |
| 13. North Carolina (107) | 38. Wyoming (74) |
| 14. Oregon (107) | 39. Arizona (72) |
| 15. Vermont (107) | 40. Alabama (70) |
| 16. Florida (104) | 41. Colorado (69) |
| 17. New Mexico (104) | 42. North Dakota (69) |
| 18. Maryland (98) | 43. Mississippi (68) |
| 19. Nebraska (96) | 44. Hawaii (64) |
| 20. Minnesota (95) | 45. Pennsylvania (62) |
| 21. Nevada (95) | 46. Idaho (61) |
| 22. Illinois (93) | 47. South Carolina (60) |
| 23. Kentucky (91) | 48. Kansas (56) |
| 24. Oklahoma (91) | 49. Washington (53) |
| 25. South Dakota (90) | 50. Missouri (41) |