California Air Resources Board

This document shows the entirety of regulatory amendments, which were approved by the Air Resources Board on December 16, 2011, and refined via subsequent conforming modifications authorized under Resolution 11-41. The source for these test procedures is Part 1039 of the “California Exhaust Emission Standards and Test Procedures for New 2008 and Later Tier 4 Off-Road Compression-Ignition Engines, Part I-C” (Part I-C), adopted October 20, 2005.

The following provisions of Part 1039 Title 40, Code of Federal Regulations (CFR), as promulgated and last amended by the United States Environmental Protection Agency on June 28, 2011, are incorporated herein by this reference into the existing California test procedures for 2008 model year and later off-road compression-ignition engines, hereafter known as the “California Exhaust Emission Standards and Test Procedures for New 2011 and Later Tier 4 Off-Road Compression-Ignition Engines, Part I-D,” except as altered or replaced by the provisions set forth in this document.