State Rural interstates (mph) Urban interstates (mph) Other limited access roads (mph) Other roads (mph)
Alabama 70 65 65 65
Alaska 65 55 65 55
Arizona 75 65 65 65
trucks: 65
Arkansas 75
trucks: 70
65 75
trucks: 70
65
California 70;
trucks: 55
65
trucks: 55
70
trucks: 55
65
trucks: 55
Colorado 75 65 65 65
Connecticut 65 55 65 55
Delaware 65 55 65 55
District of Columbia n/a 55 n/a 25
Florida 70 65 70 65
Georgia 70 70 65 65
Hawaii 60Footnote 1 60Footnote 1 55Footnote 1 45Footnote 1
Idaho 75; 80 on specified segments of road Footnote 2
trucks: 70
75; 80 on specified segments of road Footnote 2
trucks: 65
70 70
Illinois 70Footnote 3 55 65 55
Indiana 70;
trucks: 65
55 60 55
Iowa 70 55 70 65
Kansas 75 75 75 65
Kentucky 65; 70 on specified segments of roadFootnote 4 65 65 55
Louisiana 75 70 70 65
Maine 75 75 75 60
Maryland 70 70 70 55
Massachusetts 65 65 65 55
Michigan 70 (65 trucks); 75 (65 trucks) on specified segments of road 70 70 55
Minnesota 70 65 65 60
Mississippi 70 70 70 65
Missouri 70 60 70 65
Montana 80
trucks: 70
65 day: 70; night: 65 day: 70; night: 65
Nebraska 75 70 70 65
Nevada 80 65 70 70
New Hampshire 65; 70 on specified segments of roadFootnote 5 65 55 55
New Jersey 65 55 65 55
New Mexico 75 75 65 55
New York 65 65 65 55
North Carolina 70 70 70 55
North Dakota 75 75 70 65
Ohio 70 65 70 55
Oklahoma 75; 80 on specified segments of roadFootnote 6 70 70 70
Oregon 65; 70 on specified segments of road
trucks: 55; 65 on specified segments of road
55 65 65
Pennsylvania 70 70 70 55
Rhode Island 65 55 55 55
South Carolina 70 70 60 55
South Dakota 80 80Footnote 7 70 70
Tennessee 70 70 70 65
Texas 75; 80 or 85 on specified segments of roadFootnote 8 75 75 75
Utah 75; 80 on specified segments of roadFootnote 9 65 75 65
Vermont 65 55 50 50
Virginia 70 70 65 55
Washington 70; 75 on specified segments of road Footnote 10
trucks: 60
60 60 60
West Virginia 70 55 65 55
Wisconsin 70 70 70 55
Wyoming 75; 80 on specified segments of roadFootnote 11 75; 80 on specified segments of roadFootnote 11 70 70