WTO notification · TBT
ChileEmergency measure, may already applyEmergency
Draft of the revision process of Supreme Decree No. 129 of 2002, of the Ministry of Transport and Telecommunications (Ministerio de Transportes y Telecomunicaciones, MTT), which establishes the Noise Emission Standard for Urban and Rural Public Transport Buses
Anteproyecto del proceso de revisión del Decreto Supremo Nº 129, de 2002, del Ministerio de Transportes y Telecomunicaciones, que establece Norma de Emisión de Ruidos para Buses de Locomoción Colectiva Urbana y Rural
Chile notified this emergency TBT measure on 6 November 2025. Emergency measures can apply immediately.
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Source: WTO ePing (opens in a new tab). Summaries by Expodite, which is independent of the WTO.
Published here:
New models of light, medium and heavy public transport buses that enter the country and subsequently operate in public transport service. Light, medium and heavy bus: those defined by Article 2 of Supreme Decree No. 122 of 1991, of the Ministry of Transport and Tel
Nuevos modelos de buses livianos, medianos y pesados de locomoción colectiva que ingresen al país y posteriormente operan en el servicio de transporte público. Bus liviano, mediano y pesado: aquellos definidos por el artículo 2º del Decreto Supremo Nº 122 de 1991, del Ministerio de Transportes y Tel
The notification sets no comment deadline. To comment, contact your country's WTO TBT enquiry point, quoting the document symbol G/TBT/N/CHL/760; it forwards comments to Chile.
Find your country's enquiry point on WTO ePing (opens in a new tab)The standard establishes noise emission limits for public transport buses, differentiated according to the type of vehicle (light or medium/heavy), the type of test (dynamic or stationary) and the measurement position (exhaust, engine, interior and exterior). These limits apply both to new bus models entering the country and to buses currently in operation, considering the year of incorporation into the vehicle fleet. The sources subject to compliance with this standard are light, medium and heavy public transport buses, both new—whether manufactured, assembled or imported—and those in operation, that provide urban or rural transport services. Control of compliance with the standard is carried out through different mechanisms: For new bus models, verification is carried out at the Vehicle Control and Certification Center (Centro de Control y Certificación Vehicular) of the Ministry of Transport and Telecommunications (MTT). For buses in operation, control is carried out at the Technical Inspection Plants (Plantas de Revisión Técnica) and through public road inspections.
La norma establece límites de emisión de ruido para buses de locomoción colectiva, diferenciados según el tipo de vehículo (liviano o mediano/pesado), el tipo de ensayo (dinámico o estacionario) y la posición de medición (escape, motor, interior y exterior). Estos límites aplican tanto a los nuevos modelos de buses que ingresen al país como a los buses actualmente en operación, considerando el año de incorporación al parque vehicular. Las fuentes sujetas al cumplimiento de esta norma son los buses livianos, medianos y pesados de locomoción colectiva, tanto nuevos —ya sean fabricados, ensamblados o importados— como los en operación, que presten servicios de transporte urbano o rural. El control del cumplimiento de la norma se realiza a través de distintos mecanismos: Para los nuevos modelos de buses, la verificación se efectúa en el Centro de Control y Certificación Vehicular del Ministerio de Transportes y Telecomunicaciones. Para los buses en operación, el control se lleva a cabo en las Plantas de Revisión Técnica y mediante fiscalización en vía pública.
Expodite writes its summary from the official record. The notification and the documents it notifies are on the WTO's own websites.
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