| 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 |
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