Educational Information Only
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Land Traffic Act Section 122 — Motorcycle helmets
Land Traffic Act (พระราชบัญญัติจราจรทางบก) — Section 122.
Plain-English Summary
Both the rider and the passenger of a motorcycle must wear a protective helmet, and a rider may not carry an un-helmeted passenger; limited exemptions apply (e.g., monks and certain traditional religious head-coverings).
Official Text
Official Thai text at the Royal Gazette / Office of the Council of State. Translation summary only.
Consult official sourceParent Statute
Land Traffic Act
พระราชบัญญัติจราจรทางบก · B.E. 2522 (1979)
The Land Traffic Act B.E. 2522 (1979) is Thailand's principal road-traffic statute, placed under the Prime Minister and enforced by the Royal Thai Police. It sets the rules of the road — lane discipline, right of way, overtaking, turning, parking, and traffic signals and signs — together with safety duties such as helmets and seat belts and prohibitions on reckless, drink- and drug-driving, street racing and hand-held mobile-phone use. The Act delegates the detailed figures — speed limits, the blood-alcohol threshold, and helmet and seat-belt specifications — to ministerial regulations and National Police Chief notifications, so those numbers are not found in the Act itself. Driving-licence issuance is governed not by this Act but by the Motor Vehicle Act B.E. 2522 (and, for professional drivers, the Land Transport Act).
The summary above is a plain-English educational paraphrase of Section 122 of the Land Traffic Act. It is not an authoritative translation. For the binding Thai text, consult the Royal Gazette or the Office of the Council of State. Educational use only — not a substitute for advice from a Thai-qualified lawyer.
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