Some U.S. States require motorcycle riders to wear helmets and some don't require motorcycle helmets.

State
Motorcycle Helmet Required
Alabama
Yes
Alaska
No
Arizona
No
Arkansas
No
California
Yes
Colorado
No
Connecticut
No
Delaware
No
District of Columbia
Yes
Florida
No
Georgia
Yes
Hawaii
No
Idaho
No
Illinois
No
Indiana
No
Iowa
No
Kansas
No
Kentucky
No
Louisiana
Yes
Maine
No
Maryland
Yes
Massachusetts
Yes
Michigan
Yes
Minnesota
No
Mississippi
Yes
Missouri
Yes
Montana
No
Nebraska
Yes
Nevada
Yes
New Hampshire
No
New Jersey
Yes
New Mexico
No
New York
Yes
North Carolina
Yes
North Dakota
No
Ohio
No
Oklahoma
No
Oregon
Yes
Pennsylvania
No
Rhode Island
No
South Carolina
No
South Dakota
No
Tennessee
Yes
Texas
No
Utah
No
Vermont
Yes
Virginia
Yes
Washington
Yes
West Virginia
Yes
Wisconsin
No
Wyoming
No

*Some States that don't require a motorcycle helmet, do require a helmet for riders under 21 years of age.
Check with your local State for current information, motorcycle helmet laws may change often.