[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: 40CFR1068.415] [Page 843] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 1068_GENERAL COMPLIANCE PROVISIONS FOR NONROAD PROGRAMS--Table of Contents Subpart E_Selective Enforcement Auditing Sec. 1068.415 How do I test my engines? (a) Use the test procedures specified in the standard-setting part for showing that your engines meet emission standards. The test order will give further testing instructions. (b) If no test cells are available at a given facility, you may make alternate testing arrangements with our approval. (c) Test at least two engines in each 24-hour period (including void tests). However, if your projected U.S. nonroad engine sales within the engine family are less than 7,500 for the year, you may test a minimum of one engine per 24-hour period. If you request and justify it, we may approve a lower testing rate. (d) Accumulate service on test engines at a minimum rate of 6 hours per engine during each 24-hour period. The first 24-hour period for service accumulation begins when you finish preparing an engine for testing. The minimum service accumulation rate does not apply on weekends or holidays. You may ask us to approve a lower service accumulation rate. Plan your service accumulation to allow testing at the rate specified in paragraph (c) of this section. Select engine operation for accumulating operating hours on your test engines to represent normal in-use engine operation for the engine family. (e) Test engines in the same order you select them. [67 FR 68347, Nov. 8, 2002, as amended at 69 FR 39270, June 29, 2004]