State

Year

Passed

How Passed

(Yes Vote)

Possession Limit

1. Alaska
1998
Ballot Measure 8

(58%)

1 oz usable;
6 plants (3 mature, 3 immature)
2.Arizona 2010 Proposition 203

(50.13%)

2.5 oz usable;
12 plants
3. California 1996 Proposition 215

(56%)

8 oz usable;
6 mature or 12 immature plants
4. Colorado
2000
Ballot Amendment 20

(54%)

2 oz usable;
6 plants (3 mature, 3 immature)
5.Connecticut 2012 House Bill 5389

(96-51 H, 21-13 S)

2.5 oz usable
2010 Amendment Act B18-622 (13-0 vote) 2 oz dried;
limits on other forms to be determined
6. Delaware 2011 Senate Bill 17

(27-14 H, 17-4 S)

6 oz usable
7. Hawaii 2000 Senate Bill 862

(32-18 H; 13-12 S)

4 oz usable;
7 plants
8. Illinois 2013 House Bill 1

(61-57 H; 35-21 S)

2.5 ounces of usable cannabis during a period of 14 days
9. Maine
1999
Ballot Question 2

(61%)

2.5 oz usable;
6 plants
10. Maryland 2014 House Bill 881

(125-11 H; 44-2 S)

30-day supply,

amount to be determined

11. Massachusetts 2012 Ballot Question 3

(63%)

60-day supply for personal medical use

(10 oz)

12. Michigan 2008 Proposal 1

(63%)

2.5 oz usable;

12 plants

13. Minnesota 2014 Senate Bill 2470

(46-16 S; 89-40 H)

30-day supply of non-smokable marijuana
14. Montana 2004 Initiative 148

(62%)

1 oz usable;

4 plants (mature);

12 seedlings

15. Nevada 2000 Ballot Question 9

(65%)

2.5 oz usable;

12 plants

16. New Hampshire 2013 House Bill 573

(284-66 H; 18-6 S)

Two ounces of usable cannabis during a 10-day period
17. New Jersey 2010 Senate Bill 119

(48-14 H; 25-13 S)

2 oz usable
18. New Mexico 2007 Senate Bill 523

(36-31 H; 32-3 S)

6 oz usable;

16 plants (4 mature, 12 immature)

19. New York
2014
Assembly Bill 6357

(117-13 A; 49-10 S)

30-day supply non-smokable marijuana
20. Ohio 2016 House Bill 523

(71-26 H; 18-15 S)

Maximum of a 90-day supply,

amount to be determined

21. Oregon 1998 Ballot Measure 67

(55%)

24 oz usable;
24 plants (6 mature, 18 immature)
22. Pennsylvania 2016 Senate Bill 3

(149-46 H; 42-7 S)

30-day supply
23. Rhode Island 2006 Senate Bill 0710

(52-10 H; 33-1 S)

2.5 oz usable;

12 plants

24. Vermont
2004
Senate Bill 76

(22-7) HB 645 (82-59)

2 oz usable;

9 plants (2 mature, 7 immature)

25. Washington 1998 Initiative 692

(59%)

24 oz usable;

15 plants