EPA Streamlines Alt-Fuel Conversion Regulations

Edward Niedermeyer
by Edward Niedermeyer

The NYT reports:

The Environmental Protection Agency has revised its alternative-fuel conversion regulations for light and heavy-duty vehicles, making it easier for manufacturers to sell conversions that are compliant with clean-air laws. The 186-page ruling provides an exemption from a Clean Air Act prohibition against tampering when converting an engine to run on alternative fuel.

In the past, a manufacturer of alternative-fuel conversion systems was required to certify its products in the same manner that a vehicle manufacturer certified its vehicles — an expensive and difficult process. The new regulations provide a way to comply with clean-air standards through streamlined testing.

In essence, the rule change creates a graded compliance structure, depending on the age of the converted vehicle, making it easier to retrofit older vehicles. Read all about it at the EPA’s website.

Edward Niedermeyer
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  • Athos Nobile Athos Nobile on Apr 06, 2011

    FOR TEH WIN!!!11!! That should really give a kick for car conversion. People moving into the system now will be delighted by the benefits brought by the current technology: excellent driveability and losses in or below the 10% range. If calibrated properly the customer won't see the difference. Provided there's enough demand in certain models, system manufacturers will go all the way to pass an emission controls test. In Europe many cars have already been certified. On that Corolla, you got to see how clean it is. One of the cleanest set ups I've seen. They go off the line like that in Venezuela. By the way, the tank is usually covered by the carpet.

  • ChuckR ChuckR on Apr 06, 2011

    A first step of thousands needed to rid us of the more pettifogging regulations. Oh, and Congress should still send them a message that the only way they will be allowed to regulate CO2 is by breathing more slowly.

  • HerrKaLeun HerrKaLeun on Apr 07, 2011

    why are you guys so concerned about the range and distance to the home fueling station? All natural gas (or LPG) cars I know have both gasoline and the respective gas tank. they automatically switch over to gasoline when gas runs out. Obviously your monetary advantage goes away when you drive with petrol gasoline, but here is not range anxiety (as long a we have gas stations, though). I assume their gasoline tank is smaller to save space and wight (5 gallons?), but I'm not even sure about that. The engine is pretty much the same as a gasoline engine. Possible they tampered with compression, ignition point etc. nothing as revolutionary as a hybrid or EV. I assume all the home-brew-grease diesel conversions never got EPA certified :-)

    • See 5 previous
    • Athos Nobile Athos Nobile on Apr 07, 2011

      @Michal I was speaking from my CNG experience. Good to know that you got a tank with the same range as petrol. And about the economy, is what I'd expect. Do you have multipoint LPG injection, LPI or the vaporizer system?

  • Onewheeldrive Onewheeldrive on Apr 07, 2011

    Watch the movie Gasland and you might not feel so confident in the future of nat gas. Pretty depressing portrait of this "clean and abundant" energy source.