40 CFR Appendix C of Part 1036
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GEM contains the default steady-state fuel maps in this appendix for performing cycle-average engine fuel mapping as described in § 1036.505(b)(2). Note that manufacturers have the option to replace these default values in GEM if they generate a steady-state fuel map as described in § 1036.535(b).
(a) Use the following default fuel map for compression-ignition engines that will be installed in Tractors and Vocational Heavy HDV:
(b) Use the following default fuel map for compression-ignition engines that will be installed in Vocational Light HDV and Vocational Medium HDV:
(c) Use the following default fuel map for all spark-ignition engines: