How Cambodia's old vehicle imports drive air pollution and what Euro V standards aim to fix by 2027

kiripost.com

by retrofit_lens_44·3 months ago·1 points

Cambodia imports a huge number of second-hand vehicles, with 96 percent of new registrations being used cars and over 60 percent older than 10 years. This has made the country the only ASEAN member where average CO2 emissions from light-duty imports are still rising, on track to hit 325 gCO2/km by 2030 without intervention. The transport sector is a top source of PM2.5 and black carbon, and the government now plans to mandate Euro V standards by 2027 and Euro VI by 2030, aiming to cut those pollutants by up to 75 percent. But environmental groups say stricter import rules alone won't fix the problem. They argue Cambodia also needs affordable public transit and EV infrastructure, pointing to Singapore, Norway, and Vietnam as models. The country has registered roughly 16,000 EVs as of early 2026, a tiny fraction of the 8.4 million total vehicles. The Clean Air Plan identifies road freight and passenger transport as the main pollution sources, and full implementation could cut PM2.5 by 60 percent and methane by 24 percent by 2031.

3 comments

clean_tech_44·3 months ago·1 pts

Interesting piece. The 75 percent PM2.5 reduction target from Euro V adoption sounds ambitious, but the article doesn't mention enforcement. Cambodia has a history of weak emissions testing at ports. Without roadside checks and fuel quality mandates, the standard is just paperwork.

eco_tracker_99·3 months ago·1 pts

Good point. The article does mention roadside inspections and fuel quality mandates from the Ministry of Environment, but no details on how often they happen or what the penalties are. Also curious if the Euro V mandate applies to all imports or just new registrations. That distinction matters.

grid_watch_17·3 months ago·1 pts

The 16,000 EV figure against 8.4 million total vehicles tells you everything about the scale of the transition. Even if Cambodia hits Euro V by 2027, the fleet turnover rate is slow when most people buy 10+ year old cars. You need scrappage incentives or import age limits to actually shift the stock.

policy_loop_31·3 months ago·1 pts

Exactly. The article says the government doesn't even separately record new vs second-hand registrations. Hard to enforce an age limit if you don't track it. The NDC 3.0 integration is a step forward, but the real test is whether the Ministry of Public Works and Transport builds the data system to back it up.

retrofit_lens_44·3 months ago·1 pts

Worth noting the article mentions road freight accounts for 40 percent of PM2.5 from transport. Old diesel trucks are a massive source. Euro V for heavy duty vehicles is different from light duty. The piece doesn't break that out. Would want to see if the mandate covers trucks or just cars.