[Code of Federal Regulations]

[Title 40, Volume 31]

[Revised as of July 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 40CFR1048.115]



[Page 555-556]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 1048_CONTROL OF EMISSIONS FROM NEW, LARGE NONROAD SPARK-IGNITION 

ENGINES--Table of Contents

 

          Subpart B_Emission Standards and Related Requirements

 

Sec.  1048.115  What other requirements must my engines meet?



    Engines subject to this part must meet the following requirements:

    (a) Crankcase emissions. Crankcase emissions may not be discharged 

directly into the ambient atmosphere from any engine throughout its 

useful life, except as follows:

    (1) Engines may discharge crankcase emissions to the ambient 

atmosphere if the emissions are added to the exhaust emissions (either 

physically or mathematically) during all emission testing. If you take 

advantage of this exception, you must do the following things:

    (i) Manufacture the engines so that all crankcase emissions can be 

routed into the applicable sampling systems specified in 40 CFR part 

1065.

    (ii) Account for deterioration in crankcase emissions when 

determining exhaust deterioration factors.

    (2) For purposes of this paragraph (a), crankcase emissions that are 

routed to the exhaust upstream of exhaust aftertreatment during all 

operation are not considered to be discharged directly into the ambient 

atmosphere.



[[Page 556]]



    (b) Torque broadcasting. Electronically controlled engines must 

broadcast their speed and output shaft torque (in newton-meters). 

Engines may alternatively broadcast a surrogate value for determining 

torque. Engines must broadcast engine parameters such that they can be 

read with a remote device, or broadcast them directly to their 

controller area networks. This information is necessary for testing 

engines in the field (see Sec.  1048.515). This requirement applies 

beginning in the 2007 model year. Small-volume engine manufacturers may 

omit this requirement.

    (c) EPA access to broadcast information. If we request it, you must 

provide us any hardware or tools we would need to readily read, 

interpret, and record all information broadcast by an engine's on-board 

computers and electronic control modules. If you broadcast a surrogate 

parameter for torque values, you must provide us what we need to convert 

these into torque units. We will not ask for hardware or tools if they 

are readily available commercially.

    (d) [Reserved]

    (e) Adjustable parameters. Engines that have adjustable parameters 

must meet all the requirements of this part for any adjustment in the 

physically adjustable range. An operating parameter is not considered 

adjustable if you permanently seal it or if it is not normally 

accessible using ordinary tools. We may require that you set adjustable 

parameters to any specification within the adjustable range during any 

testing, including certification testing, selective enforcement 

auditing, or in-use testing.

    (f) Prohibited controls. You may not design your engines with 

emission-control devices, systems, or elements of design that cause or 

contribute to an unreasonable risk to public health, welfare, or safety 

while operating. For example, this would apply if the engine emits a 

noxious or toxic substance it would otherwise not emit that contributes 

to such an unreasonable risk.

    (g) Defeat devices. You may not equip your engines with a defeat 

device. A defeat device is an auxiliary emission-control device that 

reduces the effectiveness of emission controls under conditions that the 

engine may reasonably be expected to encounter during normal operation 

and use. This does not apply to auxiliary-emission control devices you 

identify in your certification application if any of the following is 

true:

    (1) The conditions of concern were substantially included in the 

applicable test procedures described in subpart F of this part.

    (2) You show your design is necessary to prevent engine (or 

equipment) damage or accidents.

    (3) The reduced effectiveness applies only to starting the engine.



[67 FR 68347, Nov. 8, 2002, as amended at 70 FR 40467, July 13, 2005]