CFR 40-86.1863-07-2014 Protection of Environment. Part86:Control of emissions from new and in-use highway vehicles and engines. Section86.1863-07:Optional chassis certification for diesel vehicles.
This section does not apply for vehicles certified to the Tier 3 standards in §86.1816-18, including those vehicles that certify to the Tier 3 standards before model year 2018.
CFR 40-86.1863-07-2014 history
2014CFR 40-86.1863-07-2014 Protection of Environment. Part86:Control of emissions from new and in-use highway vehicles and engines. Section86.1863-07:Optional chassis certification for diesel vehicles.