Sun Baked GL
Veteran Member
- Joined
- Jun 6, 2000
- Location
- Furnace Valley, AZ
I finally found the full text of the Tier 2 EPA standards I was looking for, it seems that:
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>
The program we are finalizing today will phase in a single set of tailpipe emission standards that will, for the first time, apply to all passenger cars, light trucks, and larger passenger vehicles operated on any fuel. This set of ``Tier 2 standards'' is feasible and the use of a single set of standards is appropriate because of the increased use of light trucks for personal transportation. The miles traveled in light trucks is increasing and the emissions from these vehicles are thus an increasing problem. This approach builds on the recent technology improvements resulting from the successful National Low-Emission Vehicles (NLEV) program…
Starting in 2004, through a phase-in, apply for the first time the same set of emission standards covering passenger cars, light trucks, and large SUVs and passenger vehicles. These emission levels (``Tier 2 standards'') are feasible for these vehicles. The Tier 2 standards are also appropriate because of the increased use of light trucks for personal transportation--the miles traveled in light trucks is increasing and the emissions from these vehicles are thus an increasing problem.
Introduce a new category of vehicles, ``medium-duty passenger vehicles,'' thus bringing larger passenger vans and SUVs into the Tier 2 program.
During the phase-in, apply interim fleet emission average standards that match or are more stringent than current federal and California ``LEV I'' (Low-Emission Vehicle, Phase I) standards.
Apply the same standards to vehicles operated on any fuel.
Allow auto manufacturers to comply with the very stringent new standards in a flexible way while ensuring that the needed environmental benefits occur.
Build on the recent technology improvements resulting from the successful National Low-Emission Vehicles (NLEV) program and improve the performance of these vehicles through lower sulfur gasoline.
Set more stringent particulate matter standards.
Set more stringent evaporative emission standards.…
We are also setting stringent particulate matter standards that will be especially important if there is substantial future growth in the sales of diesel vehicles. Before 2004, we are establishing more stringent interim PM standards for most light trucks than exist now under NLEV. With higher sales of diesel cars and light trucks, they could easily contribute between one-half and two percent of the PM10 concentration allowed by the NAAQS, with some possibility that the contribution could be as high as 5 to 40 percent in some roadside situations with heavy traffic. These increases would make attainment even more difficult for 8 counties which we already predict to need further emission reductions even without an increase in diesel sales, and would put at risk another 18 counties which are now within 10 percent of a NAAQS violation. Thus, by including a more stringent PM standard in the program finalized today, we help address environmental concerns about the potential growth in the numbers of light-duty diesels on the road--even if that growth is substantial. The new requirements also include more stringent hydrocarbon controls (exhaust NMOG and evaporative emissions standards). We will also monitor the progress of the development of advanced technologies and the role of fuels.
<HR></BLOCKQUOTE>
Whereas the EPA standards and CARBs standards are basically the same, and seem apply low emissions standards to all vehicles regardless of fuel used, only CARBs proposed rules seem to apply retroactively and require refitting of older diesels.
Looks like a diesel VW built in '04-'07(?) may be in the Vehicle Emissions Testing line right next to a gas powered vehicles in the year 2008.
And the EPA Tier 2 link: http://www.epa.gov/oms/tr2home.htm#Fact
[This message has been edited by Sun Baked GL (edited July 29, 2000).]
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>
The program we are finalizing today will phase in a single set of tailpipe emission standards that will, for the first time, apply to all passenger cars, light trucks, and larger passenger vehicles operated on any fuel. This set of ``Tier 2 standards'' is feasible and the use of a single set of standards is appropriate because of the increased use of light trucks for personal transportation. The miles traveled in light trucks is increasing and the emissions from these vehicles are thus an increasing problem. This approach builds on the recent technology improvements resulting from the successful National Low-Emission Vehicles (NLEV) program…
Starting in 2004, through a phase-in, apply for the first time the same set of emission standards covering passenger cars, light trucks, and large SUVs and passenger vehicles. These emission levels (``Tier 2 standards'') are feasible for these vehicles. The Tier 2 standards are also appropriate because of the increased use of light trucks for personal transportation--the miles traveled in light trucks is increasing and the emissions from these vehicles are thus an increasing problem.
Introduce a new category of vehicles, ``medium-duty passenger vehicles,'' thus bringing larger passenger vans and SUVs into the Tier 2 program.
During the phase-in, apply interim fleet emission average standards that match or are more stringent than current federal and California ``LEV I'' (Low-Emission Vehicle, Phase I) standards.
Apply the same standards to vehicles operated on any fuel.
Allow auto manufacturers to comply with the very stringent new standards in a flexible way while ensuring that the needed environmental benefits occur.
Build on the recent technology improvements resulting from the successful National Low-Emission Vehicles (NLEV) program and improve the performance of these vehicles through lower sulfur gasoline.
Set more stringent particulate matter standards.
Set more stringent evaporative emission standards.…
We are also setting stringent particulate matter standards that will be especially important if there is substantial future growth in the sales of diesel vehicles. Before 2004, we are establishing more stringent interim PM standards for most light trucks than exist now under NLEV. With higher sales of diesel cars and light trucks, they could easily contribute between one-half and two percent of the PM10 concentration allowed by the NAAQS, with some possibility that the contribution could be as high as 5 to 40 percent in some roadside situations with heavy traffic. These increases would make attainment even more difficult for 8 counties which we already predict to need further emission reductions even without an increase in diesel sales, and would put at risk another 18 counties which are now within 10 percent of a NAAQS violation. Thus, by including a more stringent PM standard in the program finalized today, we help address environmental concerns about the potential growth in the numbers of light-duty diesels on the road--even if that growth is substantial. The new requirements also include more stringent hydrocarbon controls (exhaust NMOG and evaporative emissions standards). We will also monitor the progress of the development of advanced technologies and the role of fuels.
<HR></BLOCKQUOTE>
Whereas the EPA standards and CARBs standards are basically the same, and seem apply low emissions standards to all vehicles regardless of fuel used, only CARBs proposed rules seem to apply retroactively and require refitting of older diesels.
Looks like a diesel VW built in '04-'07(?) may be in the Vehicle Emissions Testing line right next to a gas powered vehicles in the year 2008.
And the EPA Tier 2 link: http://www.epa.gov/oms/tr2home.htm#Fact
[This message has been edited by Sun Baked GL (edited July 29, 2000).]