◆ Daim phiaj xwm "Kev Tawm Tsam Tawm Tsam ntawm Kev Tshawb Fawb ntawm Kev Tswjhwm ntawm Diesel Truck" hais tias pib txij Lub Xya Hli 1, 2019, cov cheeb tsam tseem ceeb, thaj av Pearl River Delta, thiab thaj av Chengdu-Chongqing yuav ua raws li National Tsav Tsheb Rau Thib Emission Standard hauv ua ntej. Nws tseem tau taw qhia tias nws yog ib qho tsim nyog los ua kom muaj kev tswj hwm thiab kev coj ua zoo ntawm kev siv tsheb. Nws ntxhov siab tias kev tshem tawm thiab sib sib zog nqus kho cov tsheb qub yuav tsum ua kom nrawm nrawm. Ntxiv ntawv qhia txog tias yuav tsum tau ua kev txhawb nqa kev tsim kho kev lag luam ntsuab. Txhawb kev siv hluav taws xob tsheb uas ua tau raws li lub teb chaws 6 tus txheej txheem tsim tawm.
◆ Ntawm lawv, thaj chaw tseem ceeb yog hais txog Beijing-Tianjin-Hebei thiab thaj chaw ib puag ncig, Yangtze River Delta, Fenwei Plain-cuam tshuam txog cov xeev (nroog), thiab thaj chaw hauv nruab nrab thiab sab hnub poob ntawm Inner Mongolia Autonomous Region, suav nrog Beijing, Tianjin, Hebei, Shanxi, Shandong, Henan, Shanghai, Jiangsu, Zhejiang, Anhui, Shaanxi, thiab Hohhot, Baotou, Wulanchabu, Ordos, Bayannaoer, Wuhai, Inner Mongolia Autonomous Region.