Enacts new subsections (a1) and (a2) to GS 20-140.4 (concerning motorcycles and mopeds) to provide the following exceptions to the helmet requirement. Permits a person over 18 years old to operate a motorcycle without a helmet, provided the person is covered by an insurance policy for at least $10,000 in medical care, if the operator (1) held a license or endorsement for more than one year or (2) completed an approved safety course. Permits a motorcycle passenger who is 18 or older to ride without a helmet, provided the operator can also ride without a helmet and the passenger is covered by an insurance policy for at least $10,000 in medical care. Makes a conforming change. Deletes language requiring violator to pay court costs for failing to wear a helmet. Applies to violations occurring on or after October 1, 2013.