State
Year
Passed
How Passed
(Yes Vote)
Possession Limit
Marijuana State Laws – Summary
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.Arkansas
2016
Ballot Measure Issue 6 (53.2%)
3 oz usable per 14-day period
4.California
1996
Proposition 215 (56%)
8 oz usable; 6 mature or 12 immature plants
5.Colorado
2000
Ballot Amendment 20 (54%)
2 oz usable; 6 plants (3 mature, 3 immature)
6.Connecticut
2012
House Bill 5389 (96-51 H, 21-13 S)
2.5 oz usable
7.Delaware
2011
Senate Bill 17 (27-14 H, 17-4 S)
6 oz usable
8.Florida
2016
Ballot Amendment 2 (71.3%)
Amount to be determined
9.Hawaii
2000
Senate Bill 862 (32-18 H; 13-12 S)
4 oz usable; 7 plants
10.Illinois
2013
House Bill 1 (61-57 H; 35-21 S)
2.5 ounces of usable cannabis during a period of 14 days
11.Maine
2013
Ballot Question 2 (61%)
2.5 oz usable; 6 plants
12.Maryland
2014
House Bill 881 (125-11 H; 44-2 S)
30-day supply, amount to be determined
13.Massachusetts
2012
Ballot Question 3 (63%)
60-day supply for personal medical use (10 oz)
14.Michigan
2008
Proposal 1 (63%)
2.5 oz usable; 12 plants
15.Minnesota
2014
Senate Bill 2470 (46-16 S; 89-40 H)
30-day supply of non-smokable marijuana
16.Montana
2004
Initiative 148 (62%)
1 oz usable; 4 plants (mature); 12 seedlings
17.Nevada
2000
Ballot Question 9 (65%)
2.5 oz usable; 12 plants
18.New Hampshire
2013
House Bill 573 (284-66 H; 18-6 S)
Two ounces of usable cannabis during a 10-day period
19.New Jersey
2010
Senate Bill 119 (48-14 H; 25-13 S)
2 oz usable
20.New Mexico
2007
Senate Bill 523 (36-31 H; 32-3 S)
6 oz usable; 16 plants (4 mature, 12 immature)
21.New York
2014
Assembly Bill 6357 (117-13 A; 49-10 S)
30-day supply non-smokable marijuana
22.North Dakota
2016
Ballot Measure 5 (63.7%)
3 oz per 14-day period
23.Ohio
2016
House Bill 523 (71-26 H; 18-15 S)
Maximum of a 90-day supply, amount to be determined
24.Oregon
1998
Ballot Measure 67 (55%)
24 oz usable; 24 plants (6 mature, 18 immature)
25.Pennsylvania
2016
Senate Bill 3 (149-46 H; 42-7 S)
30-day supply
26.Rhode Island
2006
Senate Bill 0710 (52-10 H; 33-1 S)
2.5 oz usable; 12 plants
27.Vermont
2004
Senate Bill 76 (22-7) HB 645 (82-59)
2 oz usable; 9 plants (2 mature, 7 immature)
28.Washington
1998
Initiative 692 (59%)
8 oz usable; 6 plants
Washington, DC
2010
Amendment Act B18-622 (13-0 vote)
2 oz dried; limits on other forms to be determined