State
Motorcycle helmet use governs:
Does the motorcycle helmet law cover all low-power cycles?
Bicycle helmet use governs:
Alabama
all riders
yes
15 and younger
Alaska
17 and younger
yes
no law
Arizona
17 and younger
some
no law
Arkansas
20 and younger
yes
no law
California
all riders
yes
17 and younger
Colorado
17 and younger and passengers 17 and younger
yes
no law
Connecticut
17 and younger
yes
15 and younger
Delaware
18 and younger
some
17 and younger
District of Columbia
all riders
some
15 and younger
Florida
20 and younger
some
15 and younger
Georgia
all riders
some
15 and younger
Hawaii
17 and younger
some
15 and younger
Idaho
17 and younger
some
no law
Illinois
no law
no law
no law
Indiana
17 and younger
yes
no law
Iowa
no law
no law
no law
Kansas
17 and younger
some
no law
Kentucky
20 and younger
some
no law
Louisiana
all riders
yes
11 and younger
Maine
17 and younger
some
15 and younger
Maryland
all riders
some
15 and younger
Massachusetts
all riders
yes
1-16 (riding with children
younger than 1 prohibited)
Michigan
20 and younger
some
no law
Minnesota
17 and younger
yes
no law
Mississippi
all riders
yes
no law
Missouri
all riders
some
no law
Montana
17 and younger
some
no law
Nebraska
all riders
yes
no law
Nevada
all riders
some
no law
New Hampshire
no law
no law
15 and younger
New Jersey
all riders
yes
16 and younger
New Mexico
17 and younger
some
17 and younger
New York
all riders
some
1-13 (riding with children
younger than 1 prohibited)
North Carolina
all riders
yes
15 and younger
North Dakota
17 and younger
yes
no law
Ohio
17 and younger
yes
no law
Oklahoma
17 and younger
some
no law
Oregon
all riders
yes
15 and younger
Pennsylvania
20 and younger
some
11 and younger
Rhode Island
20 and younger
some
15 and younger
South Carolina
20 and younger
yes
no law
South Dakota
17 and younger
yes
no law
Tennessee
all riders
yes
15 and younger
Texas
20 and younger
some
no law
Utah
17 and younger
yes
no law
Vermont
all riders
some
no law
Virginia
all riders
some
no law
Washington
all riders
yes
no law
West Virginia
all riders
some
14 and younger
Wisconsin
17 and younger
some
no law
Wyoming
17 and younger
some
no law
Information taken from iihs.gov December, 2011. Please check for current state laws before traveling.