No, leaving a car running unattended is illegal under Thailand’s Road Traffic Act B.E. 2522 (1979), with amendments enforced by the Royal Thai Police and Department of Land Transport. Violators face fines up to 1,000 THB (≈28 USD) and potential vehicle impoundment, particularly in Bangkok where anti-idling campaigns target air pollution.
Key Regulations for Leaving Your Car Running Unattended in Thailand
- Section 56(3) of the Road Traffic Act prohibits leaving a vehicle unattended while the engine is running, citing public safety and fuel waste concerns.
- Bangkok Metropolitan Administration (BMA) Ordinance 2552 (2009) imposes additional penalties in urban areas, including mandatory engine shutdowns near schools or hospitals.
- 2026 Compliance Shift: The Land Transport Department plans stricter enforcement via AI traffic cameras, targeting idling vehicles in high-pollution zones under the National Clean Air Act’s 2024 amendments.
Local police may issue warnings for first-time offenders, but repeat violations risk vehicle seizure under Section 112 of the Act. Exceptions apply only for emergency stops or valet parking with the engine off. Non-compliance during smog alerts (common in Chiang Mai) escalates fines to 2,000 THB (≈56 USD). Always turn off the ignition and engage the handbrake when leaving the driver’s seat, even briefly.