As state laws surrounding the use of medical marijuana are so fast moving, we thought it might be a good idea to give an up-to-date picture of where states where use of medical cannabis is legal and states where legalization of medical cannabis is pending. So, here goes:
| State |
Year Passed |
Registration Required |
Cost of Registration |
Amounts Allowed |
Other States’ Cards Valid |
| Alaska | 1998 | Yes | $25 | 1 oz usable: 6 plants 3 mature 3 immature |
? |
| California | 1996 | Yes | $66/$33 | 8 oz usable: 18 plants 6 mature 12 immature |
No |
| Colorado | 2000 | Yes | $90 | 2 oz usable: 6 plants 3 mature 3 immature |
No |
| Hawaii | 2000 | Yes | $25 | 3 oz usable: 7 plants 3 mature 4 immature |
No |
| Maine | 1999 | Not Yet | - | 2.5 oz usable: 6 plants |
Yes |
| Michigan | 2008 | Yes | $100/$25 | 2.5 oz usable: 12 plants | Yes |
| Montana | 2004 | Yes | $25/$10 | 1 oz usable: 6 plants |
Yes |
| Nevada | 2000 | Yes | $150 | 1 oz usable: 7 plants 3 mature 4 immature |
No |
| New Jersey | 2010 | Not Yet | - | 2oz usable | ? |
| New Mexico | 2007 | Yes | No Charge | 6 oz usable: 16 plants 4 mature 12 immature |
No |
| Oregon | 1998 | Yes | $100/$20 | 24 oz usable: 24 plants 6 mature 18 immature |
No |
| Rhode Island | 2006 | Yes | $75/$10 | 2.5 oz usable: 12 plants |
Yes |
| Vermont | 2004 | Yes | $50 | 2 oz usable: 9 plants 2 mature 7 immature |
No |
| Washington | 1998 | Not Yet | - | 24 oz usable: 15 plants |
No |

Where does a farmer in New Mexico go to get permission to grow medical marijuana for only patients who need this drug?