All such safety belts or safety shoulder harnesses shall be of a type
and shall be installed in a manner approved by the Department of
Public Safety. The Department shall establish specifications and
requirements for approved types of safety belts and safety shoulder
harnesses and attachments thereto. The Department shall accept, as
approved, all safety seat belt and safety shoulder harness
installations and the belts, harnesses and anchors meeting the society
of automotive engineers' specifications.