Traffic & Road Law Penalties & Sentencing Guidelines

Maximum penalty: Base offence (no injury caused): up to 1 year imprisonment and/or a fine of THB 5,000–20,000, plus licence suspension of at least 6 months or revocation. Where it causes bodily harm, 1–5 years and THB 20,000–100,000; serious injury, 2–6 years and THB 40,000–120,000; death, 3–10 years and THB 60,000–200,000 with licence revoked.

Land Traffic Act B.E. 2522 §43(2), Land Traffic Act B.E. 2522 §160 ter

Maximum penalty: Punishment one-third higher than the penalty under the narcotics or psychotropic-substances law, plus licence suspension of at least 6 months or revocation. Where harm results the tiers mirror drink-driving: 1–5 years (injury), 2–6 years (serious injury) and 3–10 years (death), with fines up to THB 200,000. Refusing a lawful test is itself a fine of up to THB 1,000.

Land Traffic Act B.E. 2522 §43 bis, Land Traffic Act B.E. 2522 §157/1

Maximum penalty: Up to 3 months imprisonment and/or a fine of THB 2,000–10,000, rising to up to 6 months and/or THB 5,000–20,000 where the accident causes serious injury or death. The vehicle may be seized and, if the owner does not come forward within six months, forfeited to the State.

Land Traffic Act B.E. 2522 §78, Land Traffic Act B.E. 2522 §160

Maximum penalty: A fine of up to THB 1,000. The numeric speed limits are set by ministerial regulation and posted signs, not by the Act, and camera enforcement with a mailed ticket is common.

Land Traffic Act B.E. 2522 §67, Land Traffic Act B.E. 2522 §152

Maximum penalty: A fine of up to THB 500 under the consolidated Act, doubled where a rider carries an un-helmeted passenger. The amount can be changed by amendment, so confirm the current figure. Seat-belt breaches (§123) carry the same base fine.

Land Traffic Act B.E. 2522 §122, Land Traffic Act B.E. 2522 §148