69_340_GTS
Well-Known Member
Tier 3 EPA (2017) standards are:Not sure of power generation in other states, but in CA power generation emissions are much cleaner than emissions from vehicles from strictly a tailpipe emissions standpoint. For instance, NG power plants in CA must meet a 2ppm NOx concentration limit out of the stack. What are what are the NOx emissions from a new combustion engine driven car?
"NMOG+NOX Standards: The standards for NMOG+NOX are fleet-average standards, meaning that a manufacturer calculates the weighted average emissions of the vehicles it produces in each model year and compares that average to the applicable standard for that model year. The standards differ by vehicle class and test cycle. Key elements include: NMOG+NOX Standards for Light-Duty Vehicles and Light-Duty Trucks (vehicles below 8,500 pounds (lbs) Gross Vehicle Weight Rating (GVWR)), and Medium-Duty Passenger Vehicles (8,500 to 10,000 lbs GVWR): • As measured on the Federal Test Procedure (FTP), the standards decline from today’s fleet average of 160 milligrams per mile (mg/mi) to 30 mg/mi by 2025. • As measured on the Supplemental Federal Test Procedure (SFTP), the standards decline from today’s fleet average of about 200 mg/mi to 50 mg/mi by 2025."
How you convert mg/mi to ppm is anyone's guess.















