TITLE 40 - PROTECTION OF ENVIRONMENT

CHAPTER I - ENVIRONMENTAL PROTECTION AGENCY

SUBCHAPTER U - AIR POLLUTION CONTROLS

PART 1039 - CONTROL OF EMISSIONS FROM NEW AND IN - USE NONROAD COMPRESSION - IGNITION ENGINES

subpart b - EMISSION STANDARDS AND RELATED REQUIREMENTS

1039.105 - What smoke standards must my engines meet?

  (a) The smoke standards in this section apply to all engines subject to emission standards under this part, except for the following engines: (1) Single-cylinder engines.

  (2) Constant-speed engines.

  (3) Engines certified to a PM emission standard or FEL of 0.07 g/kW-hr or lower.

  (b) Measure smoke as specified in 1039.501(c). Smoke from your engines may not exceed the following standards: (1) 20 percent during the acceleration mode.

  (2) 15 percent during the lugging mode.

  (3) 50 percent during the peaks in either the acceleration or lugging modes.