Utah Code Title 41. Motor Vehicles § 41-6a-1803. Driver and passengers--Seat belt or child restraint device required

(i) wear a properly adjusted and fastened safety belt;

(ii) provide for the protection of each person younger than eight years old by using a child restraint device to restrain each person in the manner prescribed by the manufacturer of the device; and

(iii) provide for the protection of each person that is at least eight years old and no less than 16 years old by securing, or causing to be secured, a properly adjusted and fastened safety belt on each person.

(i) is exempt from the requirement in Subsection (1)(a)(ii) to be in a child restraint device; and

(ii) shall use a properly adjusted and fastened safety belt as required in Subsection (1)(a)(iii).

(i) provide for the protection of each person younger than eight years old who is under the adult's supervision by using a child restraint device to restrain the person in the manner prescribed by the manufacturer of the device; and

(ii) provide for the protection of each person who is under the adult's supervision and is at least eight years old and no less than 16 years old by securing, or causing to be secured, a properly adjusted and fastened safety belt on the person.