[Code of Federal Regulations]
[Title 40, Volume 30]
[Revised as of July 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR1048.250]

[Page 560-561]
 
                   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 C_Certifying Engine Families
 
Sec. 1048.250  What records must I keep and make available to EPA?

    (a) Organize and maintain the following records to keep them readily 
available; we may review these records at any time:
    (1) A copy of all applications and any summary information you sent 
us.
    (2) Any of the information we specify in Sec. 1048.205 that you did 
not include in your application.
    (3) A detailed history of each emission-data engine. In each 
history, describe all of the following:
    (i) The test engine's construction, including its origin and 
buildup, steps you took to ensure that it represents production engines, 
any components you built specially for it, and all emission-related 
components.
    (ii) How you accumulated engine operating hours, including the dates 
and the number of hours accumulated.
    (iii) All maintenance (including modifications, parts changes, and 
other service) and the dates and reasons for the maintenance.
    (iv) All your emission tests, including documentation on routine and 
standard tests, as specified in part 40 CFR part 1065, and the date and 
purpose of each test.
    (v) All tests to diagnose engine or emission-control performance, 
giving the date and time of each and the reasons for the test.

[[Page 561]]

    (vi) Any other significant events.
    (b) Keep data from routine emission tests (such as test cell 
temperatures and relative humidity readings) for one year after we issue 
the associated certificate of conformity. Keep all other information 
specified in paragraph (a) of this section for eight years after we 
issue your certificate.
    (c) Store these records in any format and on any media, as long as 
you can promptly send us organized, written records in English if we ask 
for them.
    (d) Send us copies of any engine maintenance instructions or 
explanations if we ask for them.