[Code of Federal Regulations]
[Title 40, Volume 31]
[Revised as of July 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR1051.250]

[Page 639]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 1051_CONTROL OF EMISSIONS FROM RECREATIONAL ENGINES
AND VEHICLES--Table of Contents
 
                  Subpart C_Certifying Engine Families
 
Sec.  1051.250  What records must I keep and make available to EPA?

    (a) Organize and maintain the following records:
    (1) A copy of all applications and any summary information you send 
us.
    (2) Any of the information we specify in Sec.  1051.205 that you 
were not required to include in your application.
    (3) A detailed history of each emission-data vehicle. For each 
vehicle, describe all of the following:
    (i) The emission-data vehicle's construction, including its origin 
and buildup, steps you took to ensure that it represents production 
vehicles, any components you built specially for it, and all the 
components you include in your application for certification.
    (ii) How you accumulated vehicle or 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 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.
    (vi) Any other significant events.
    (4) Production figures for each engine family divided by assembly 
plant.
    (5) Keep a list of engine identification numbers for all the engines 
you produce under each certificate of conformity.
    (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. You must keep these records readily available. We may review 
them at any time.
    (d) Send us copies of any maintenance instructions or explanations 
if we ask for them.

[70 FR 40497, July 13, 2005]