Mr. Tanom Rattanasate, Assistant Governor on behalf of Mass Rapid Transit Authority of Thailand (MRTA) received Certification for Smoke-Free Organization on standard level in Smoke-Free Organization honorary event by Association for the Development of Environmental Quality (Thailand) on Tuesday 16^th May 2023 at Nakorn Rangsit meeting room, 1^st floor, Novotel Bangkok Future Park Rangsit.