[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: 40CFR1048.405]



[Page 575-576]

 

                   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 E_Testing In-use Engines

 

Sec.  1048.405  How does this program work?



    (a) You must test in-use engines, for exhaust emissions, from the 

families we select. We may select up to 25 percent of your engine 

families in any model year--or one engine family if you have three or 

fewer families. We will select engine families for testing



[[Page 576]]



before the end of the model year. When we select an engine family for 

testing, we may specify that you preferentially test engines based on 

fuel type or equipment type. In addition, we may identify specific modes 

of operation or sampling times. You may choose to test additional engine 

families that we do not select.

    (b) Send us an in-use testing plan within 12 calendar months after 

we direct you to test a particular engine family. Complete the testing 

within 24 calendar months after we approve your plan.

    (c) You may need to test engines from more than one model year at a 

given time.