USA Hiways (speed limit, emergency phone and child restraint laws)

State Speed limit Emergency Child restraint
Alabama 70-I, 65 4-lane *HP Under age 6
Alaska 65 when posted 911 or *273 Under age 7
Arizona 75-I, 55 others 911 Under age 6
Arkansas 70-I rural, 55-65 others 911 Under age 4 or < 40 lbs
California 70-I rural, 55-65 others *911 Under age 4 or < 40 lbs
Colorado 75-I, 65 4-lane 911 Under age 4 or < 40 lbs
Connecticut 55 *911 Under age 4
Delaware 50-65 when posted 911 Under age 4
Florida 70-I TPK, 55 others *FHP Under age 6
Georgia 70-I, 65 others *GSP Under age 3
Hawaii 55 911 Under age 4
Idaho 75-I rural, 55 others *ISP Under age 4
Illinois 65-I, 55 others 911 and *999 Under age 4
Indiana 65-I Toll, 55 others 911 Under age 5
Iowa 65-I/4-lane, 55 others *55 or 911 Under age 3
Kansas 70-I/TPK, 65 others *47 Under age 4
Kentucky 65-I, 55 others 911 Under 41 inches
Louisiana 65-I rural or as posted 911 Under age 5
Maine As posted *77 Under age 4
Maryland 65-I, 50-55 others 911 Under age 4 or < 40 lbs
Massachusetts 65-I, 40-55 others *SP Under age 5 or < 40 lbs
Michigan 70-I/rural, 55 others 911 Under age 4
Minnesota 70-I, 45-65 others *911 Under age 4
Mississipi 70-I, 55-65 others *HP Under age 4
Missouri 70-I, 55-65 others *55 Under age 4
Montana 65-I, 55 others 911 Under age 4 or < 40 lbs
Nebraska 75-I rural, 60-65 others *55 Under age 4 or < 40 lbs
Nevada 75-I or as posted *NHP Under age 5 or < 40 lbs
New Hampshire 65-I, 55 others *77 Under age 4
New Jersey 65-I/TPK, 50 others *77 Under age 5
New Mexixo 75-I, 55-65 others 911 Under age 11
New York 65-I rural, 55 others 911 Under age 4
North Carolina 65-70-I, 55 others *HP Under age 3
North Dakota 70-I, 55-65 others *2121 Under age 3
Ohio 65-I/TPK, 55-60 others 911/*DUI Under age 4 or < 40 lbs
Oklahoma 75-TPK/70-I, 55 others *55 Under age 4
Oregon 65-I, 55 others 911 Under age 4 or < 40 lbs
Pennsylvania 65-I rural/Tpk, 55 others 911 Under age 4
Rhode Island 65-I, 55 others 911/*77 Under age 4
South Carolina 65-I, 55 others Unknown Under age 6
South Dakota 75-I, 65 others 911 (not always) Under age 5 or < 40 lbs
Tennessee 70-I rural, 55 others *THP Under age 4
Texas 70-I day/65-I night, 55 others 911 Under age 2
Utah 75-I rural, 55-65 others 911/*11 (road help) Under age 10
Vermont 65-I, 55 others 911 Under age 5
Virginia 65-I, 55 others 911/*77 Under age 4
Washington 70-I when posted, 55 others 911 Under age 3
West Virginia 70-I/TPK, 55-65 others *SP Under age 3
Wisconsin 65-I, 55-60 others 911 Under age 4
Wyoming 75-I, 65 others as posted 911/*4357 Under age 5 or < 40 lbs