<div id="readability-page-1">As Vietnam advances its plan to reduce serious pollution in its major cities, the government has recently introduced national motorcycle emission standards, establishing a nationwide framework for controlling motorcycle and moped emissions for the first time.  Vietnam is entering a new phase of environmental regulation as air pollution becomes a central policy concern in major urban and industrial centers. In December 2025, the Prime Minister approved the National Action Plan on Pollution Remediation and Air Quality Management for 2026-2030, with a vision extending to 2045.  The plan establishes detailed targets, responsibilities, and priority projects to improve air quality, strengthen emissions control, and support Vietnam’s transition toward a green and sustainable economy.  Within this broader framework, the transport sector has been identified as a key contributor to urban air pollution, alongside industrial activity and open burning. As motorcycles and mopeds remain the dominant mode of transport nationwide, regulating emissions from two-wheel vehicles has become a policy priority.  Against the backdrop, on December 12, 2025, the Ministry of Agriculture and Environment (MAE) issued Circular No. 92/2025/TT-BNNMT (“Circular 92”), promulgating the National Technical Regulation on Emissions for Motorcycles and Mopeds Participating in Road Traffic. The circular introduces, for the first time, a structured, nationwide framework for controlling emissions from motorcycles and mopeds.  Circular 92 applies to individuals, organizations, and businesses using motorcycles and mopeds in road traffic, as well as entities conducting emission inspections and relevant state management authorities.  While the circular defines the technical standards and compliance framework, it also specifies that implementation will follow decisions issued by the Prime Minister, allowing the government to phase in requirements in line with enforcement capacity and socioeconomic considerations.  p  EXPLORE IN-DEPTH INVESTMENT AND BUSINESS GUIDES.  Explore vital economic, geographic, and regulatory insights for business investors, managers, or expats to navigate Vietnam’s business landscape. Our Online Business Guides offer explainer articles, news, useful tools, and videos from on-the-ground advisors who contribute to the Doing Business in Vietnam knowledge.  Start exploring  The regulation sets maximum permissible emission limits based on two key indicators: carbon monoxide (CO) and hydrocarbons (HC). These pollutants are closely linked to urban air-quality degradation and public health risks, particularly in densely populated cities.  Under Circular 92, CO limits range from 4.5 percent to 2.0 percent by volume, depending on the applicable compliance level. HC limits are differentiated by engine type to reflect technological differences across Vietnam’s motorcycle fleet.  These parameters provide a standardized basis for emission testing and enforcement across provinces and municipalities.  Vehicle / Engine Category  Circular 92 introduces a four-level emission compliance system broadly aligned with European standards, creating a clear progression path for regulatory tightening:  This tiered structure allows authorities to raise environmental requirements gradually while giving vehicle owners and businesses time to adapt.  Vietnam currently has around 70 million motorcycles and mopeds in circulation nationwide, underscoring the scale of the regulatory challenge. Effective enforcement of Circular 92 will depend heavily on the availability of emission inspection infrastructure.  According to official estimates, approximately 5,000 qualified emission inspection facilities will be required nationwide to support implementation. This expansion aligns with the National Action Plan’s broader emphasis on strengthening monitoring capacity, improving data collection, and integrating digital technologies into environmental management.  Circular 92 forms part of a broader package of air-quality measures under the National Action Plan for 2026–2030. The plan sets specific targets for reducing PM2.5 concentrations, improving the Vietnam Air Quality Index (VN_AQI), and maintaining “good” air-quality levels across major cities in the long term.  In the transport sector, these measures include the planned introduction of low-emission zones (LEZs) in Hanoi and HCMC, incentives for clean and green mobility, and a requirement for all public-transport vehicles in these cities to operate on clean or green energy by 2030. Motorcycle emission standards are, therefore, a foundational element supporting wider transport and urban-planning reforms.  See also: Vietnam’s Plan to Combat Urban Air Pollution: Insights for Businesses  For businesses, Circular 92 signals tighter and more systematic regulation of vehicle emissions, particularly for those operating in urban areas. Companies relying on motorcycle fleets, such as logistics providers, delivery platforms, and ride-hailing operators, will need to evaluate fleet age, maintenance practices, and long-term replacement strategies.  As emission standards tighten and enforcement mechanisms mature, older and higher-emission vehicles may face higher operating costs, more frequent inspections, or restricted access to certain urban zones. Early planning will be critical to managing compliance risks and controlling costs.  Circular 92 reflects a broader shift in Vietnam’s regulatory landscape, where environmental compliance is becoming an integral part of doing business rather than a peripheral concern. As air-quality objectives are embedded into national planning and urban governance, transport-related emissions regulation is likely to tighten further over time.  For businesses operating in Vietnam, monitoring implementation timelines, aligning fleet and investment strategies with policy direction, and identifying opportunities in green mobility and environmental services will be essential to remaining competitive in an increasingly regulated operating environment.  Business Advisory Services  Dezan Shira &amp; Associates’ business advisory services offer strategic guidance to help you navigate challenges and seize opportunities in Asia’s complex markets. Contact our Vietnam team to schedule a consultation: Vietnam@dezshira.com.  About Us  Vietnam Briefing is one of five regional publications under the Asia Briefing brand. It is supported by Dezan Shira &amp; Associates , a pan-Asia, multi-disciplinary professional services firm that assists foreign investors throughout Asia, including through offices in Hanoi , Ho Chi Minh City , and Da Nang in Vietnam. Dezan Shira &amp; Associates also maintains offices or has alliance partners assisting foreign investors in China , Hong Kong SAR , Indonesia , Singapore , Malaysia , Mongolia , Dubai (UAE) , Japan , South Korea , Nepal , The Philippines , Sri Lanka , Thailand , Italy , Germany , Bangladesh , Australia , United States , and United Kingdom and Ireland .  For a complimentary subscription to Vietnam Briefing’s content products, please click here . For support with establishing a business in Vietnam or for assistance in analyzing and entering markets, please contact the firm at vietnam@dezshira.com or visit us at www.dezshira.com</div>

<p>越南已推出國家摩托車排放標準，這標誌着其在應對城市空氣污染方面邁出了重要一步。新規章在第 92 號通告中列出，建立了控制摩托車和輕便摩托車排放的框架，這些車輛是空氣質量惡化的主要因素。標準設定了與歐洲規範相一致的一氧化碳和烴類的最大允許限值。有效的執行將需要全國約 5000 個排放檢測設施。該倡議是更廣泛的國家行動計劃的一部分，旨在到 2030 年改善空氣質量並促進可持續交通解決方案</p>

越南在全國空氣質量改革中推出摩托車排放標準