New Vehicle and Engine Certification: Executive Orders for MY2024 Off-Road Compression-Ignition Engines

The New Vehicle and Engine Certification Program is responsible for the certification of new engines, vehicles, powertrains, aerodynamic devices and other new certifications. Vehicles and engines may be sold and otherwise produced in California only if approved by Executive Order (EO) after review by CARB. Executive Orders are issued for on-road and off-road categories.

Scanned copies of issued Executive Orders may be requested via email.

The following Executive Orders granted to the listed manufacturers of off-road compression-ignition engines have been issued during the 2024 model year, as of September 13, 2023.

Further information is available in the Executive Orders Summary.

For questions, please contact Heavy-Duty Certification or Help Line at 1-800-242-4450.

CATERPILLAR, INC.

EO #	Date	Engine Family	Fuel System	Fuels	Tier	Cert Levels
						xxHC	NOx	xxHC+NOx	CO	PM
						xxHC	NOx	xxHC+NOx	CO	PM
U‑R‑001‑0677	4/28/2023	RCPXL09.3HTF	DDI	DIESEL	Tier 4	0.02	0.12		0.1	0.01
U‑R‑001‑0678	4/28/2023	RCPXL09.3NTF	DDI	DIESEL	Tier 4		0.19	0.04	0.2	0.01
U‑R‑001‑0679	4/28/2023	RCPXL12.5HTF	DDI	DIESEL	Tier 4	0.05	0.26		0.02	0.01
U‑R‑001‑0680	4/28/2023	RCPXL12.5NTF	DDI	DIESEL	Tier 4	0.08	0.23		0.1	0.01
U‑R‑001‑0681	4/28/2023	RCPXL15.2HTF	DDI	DIESEL	Tier 4	0.06	0.11		0.1	0.01
U‑R‑001‑0682	4/28/2023	RCPXL18.1HTF	DDI	DIESEL	Tier 4	0.04	0.11		0.01	0.01
U‑R‑001‑0683	4/28/2023	RCPXL18.1HTH	DDI	DIESEL	Tier 4	0.02	0.1		0.01	0.01
U‑R‑001‑0684	5/1/2023	RCPXL18.1HXF	DDI	DIESEL	Tier 4	0.03	2.9		0	0.04
U‑R‑001‑0685	5/30/2023	RCPXL27.0HXF	DDI	DIESEL	Tier 4	0.04	3.1		0.01	0.03
U‑R‑001‑0686	5/30/2023	RCPXL32.1HXF	DDI	DIESEL	Tier 4	0.03	2.6		0.01	0.03
U‑R‑001‑0687	5/30/2023	RCPXL32.1HXG	DDI	DIESEL	Tier 4	0.05	3.1		0.01	0.04
U‑R‑001‑0688	5/1/2023	RCPXL58.6HXF	DDI	DIESEL	Tier 4	0.06	3.2		0.03	0.03
U‑R‑001‑0689	5/1/2023	RCPXL58.6HXG	DDI	DIESEL	Tier 4	0.03	3.2		0.01	0.02
U‑R‑001‑0690	5/1/2023	RCPXL78.1NSG	DDI	DIESEL	Tier 4	0.02	0.56		0.01	0.07
U‑R‑001‑0691	5/30/2023	RCPXL78.1NVF	DDI	DIESEL	Tier 4	0.07	2.7		0.8	0.03
U‑R‑001‑0692	5/1/2023	RCPXL106.NVF	DDI	DIESEL	Tier 4	0.06	3		1.9

CUMMINS, INC.

EO #	Date	Engine Family	Fuel System	Fuels	Tier	Cert Levels
						xxHC	NOx	xxHC+NOx	CO	PM
						xxHC	NOx	xxHC+NOx	CO	PM
U‑R‑002‑0847	6/13/2023	RCEXL04.5AAK	DDI	DIESEL	Tier 4	0.05	0.12		0.01	0.01
U‑R‑002‑0848	6/13/2023	RCEXL04.5AAL	DDI	DIESEL	Tier 4	0.04	0.14		0.04	0.01
U‑R‑002‑0849	6/12/2023	RCEXL02.8AAC	DDI	DIESEL	Tier 4		4.6		0.1	0.02
U‑R‑002‑0850	6/12/2023	RCEXL02.8AAB	DDI	DIESEL	Tier 4		4.6		0.1	0.02
U‑R‑002‑0851	6/12/2023	RCEXL03.8AAA	DDI	DIESEL	Tier 4	0.03	0.29		0.4	0.04
U‑R‑002‑0852	6/12/2023	RCEXL03.8AAB	DDI	DIESEL	Tier 4	0.07	0.25		0.03	0.02
U‑R‑002‑0853	6/15/2023	RCEXL06.7AAK	DDI	DIESEL	Tier 4	0.02	0.17		0	0.02
U‑R‑002‑0854	6/15/2023	RCEXL06.7AAL	DDI	DIESEL	Tier 4	0.04	0.19		0	0.01
U‑R‑002‑0855	6/13/2023	RCEXL06.7AAQ	DDI	DIESEL	Tier 4	0.02	0.16		0.03	0.01
U‑R‑002‑0856	6/15/2023	RCEXL08.9AAK	DDI	DIESEL	Tier 4	0.04	0.18		0.1	0.02
U‑R‑002‑0857	6/22/2023	RCEXL08.9AAL	DDI	DIESEL	Tier 4	0.01	0.21		0.03	0.02
U‑R‑002‑0858	6/22/2023	RCEXL08.9AAQ	DDI	DIESEL	Tier 4	0.03	0.21		0	0.01
U‑R‑002‑0859	6/22/2023	RCEXL08.9AAR	DDI	DIESEL	Tier 4	0.01	0.33		0	0.01
U‑R‑002‑0860	7/6/2023	RCEXL50.0AAF	DDI	DIESEL	Tier 4	0.02	3.2		0.1	0.02
U‑R‑002‑0861	7/6/2023	RCEXL60.0AAF	DDI	DIESEL	Tier 4	0.02	3		0.2	0.02
U‑R‑002‑0862	6/27/2023	RCEXL19.0AAA	DDI	DIESEL	Tier 4	0.09	3		0.2	0.02
U‑R‑002‑0863	6/27/2023	RCEXL23.0AAD	DDI	DIESEL	Tier 4	0.02	2.3		0.1	0.02
U‑R‑002‑0864	6/28/2023	RCEXL30.0AAE	DDI	DIESEL	Tier 4	0.01	2.9		0.1	0.01
U‑R‑002‑0865	6/28/2023	RCEXL50.0AAG	DDI	DIESEL	Tier 4	0.03	2.4		0.1	0.02
U‑R‑002‑0866	7/6/2023	RCEXL04.5AAJ	DDI	DIESEL	Tier 4	0.01	0.21		0	0.01
U‑R‑002‑0867	7/6/2023	RCEXL03.8AAC	DDI	DIESEL	Tier 4		4.3		0.1	0.03
U‑R‑002‑0868	7/6/2023	RCEXL04.5AAH	DDI	DIESEL	Tier 4	0.04	0.1		0.04	0.02
U‑R‑002‑0869	7/6/2023	RCEXL03.8AAD	DDI	DIESEL	Tier 4	0.03	0.29		0.4	0.04
U‑R‑002‑0870	7/26/2023	RCEXL78.0AAB	DDI	DIESEL	Tier 4	0.02	3		0.1	0.02
U‑R‑002‑0871	7/26/2023	RCEXL15.0AAL	DDI	DIESEL	Tier 4	0.002	0.24		0	0.004
U‑R‑002‑0872	7/26/2023	RCEXL15.0AAS	DDI	DIESEL	Tier 4	0.02	0.64		0.1	0.02
U‑R‑002‑0873	7/28/2023	RCEXL12.0AAA	DDI	DIESEL	Tier 4	0.01	0.17		0.1	0.01
U‑R‑002‑0874	7/27/2023	RCEXL03.8AAE	DDI	DIESEL	Tier 4		4.4		0.1	0.002
U‑R‑002‑0875	7/27/2023	RCEXL03.8AAF	DDI	DIESEL	Tier 4	0.01	0.14		0.01	0.01
U‑R‑002‑0877	8/15/2023	RCEXL06.7AAT	DDI	DIESEL	Tier 4	0.04	0.35		0.02	0.01

DEERE

EO #	Date	Engine Family	Fuel System	Fuels	Tier	Cert Levels
						xxHC	NOx	xxHC+NOx	CO	PM
						xxHC	NOx	xxHC+NOx	CO	PM
U‑R‑004‑0658	3/22/2023	RJDXL18.0342	DDI	DIESEL	Tier 4	0.05	3.2		0.2	0.03
U‑R‑004‑0675	9/5/2023	RJDXL06.8302	DDI	DIESEL	Tier 4	0.03	0.16		0.1	0.003
U‑R‑004‑0676	8/21/2023	RJDXL06.8309	DDI	DIESEL	Tier 4	0.02	0.06		0.1	0.003
U‑R‑004‑0677	8/21/2023	RJDXL09.0308	DDI	DIESEL	Tier 4	0	0.07		0.1	0.003

DEUTZ AG

EO #	Date	Engine Family	Fuel System	Fuels	Tier	Cert Levels
						xxHC	NOx	xxHC+NOx	CO	PM
						xxHC	NOx	xxHC+NOx	CO	PM
U‑R‑013‑0723	8/24/2023	RDZXL03.6122	DDI	DIESEL	Tier 4		4.23		0.17	0.004
U‑R‑013‑0728	8/24/2023	RDZXL05.7053	DDI	DIESEL	Tier 4	0.03	0.296		0.1	0.009
U‑R‑013‑0729	8/24/2023	RDZXL06.1048	DDI	DIESEL	Tier 4	0.06	0.31		0.81	0.009
U‑R‑013‑0730	8/24/2023	RDZXL06.1049	DDI	DIESEL	Tier 4	0.03	0.16		0.03	0.005
U‑R‑013‑0731	8/24/2023	RDZXL06.1050	DDI	DIESEL	Tier 4	0.01	0.29		1.69	0.015
U‑R‑013‑0732	8/24/2023	RDZXL06.1059	DDI	DIESEL	Tier 4	0.02	0.17		0.02	0.006
U‑R‑013‑0733	8/24/2023	RDZXL07.8046	DDI	DIESEL	Tier 4	0	0.3		0.2	0.015
U‑R‑013‑0734	8/24/2023	RDZXL07.8047	DDI	DIESEL	Tier 4	0.02	0.31		0.01	0.004
U‑R‑013‑0735	9/5/2023	RDZXL07.8051	DDI	DIESEL	Tier 4	0.01	0.268		0.16	0.017
U‑R‑013‑0736	8/23/2023	RDZXL15.9058	DDI	DIESEL	Tier 4	0.02	0.343		0.02	0.014

HHIC

EO #	Date	Engine Family	Fuel System	Fuels	Tier	Cert Levels
						xxHC	NOx	xxHC+NOx	CO	PM
						xxHC	NOx	xxHC+NOx	CO	PM
U‑R‑019‑0211	8/14/2023	RDICL02.4LEC	DDI	DIESEL	Tier 4		3.4		0.2	0.019

ISUZU MOTORS

EO #	Date	Engine Family	Fuel System	Fuels	Tier	Cert Levels
						xxHC	NOx	xxHC+NOx	CO	PM
						xxHC	NOx	xxHC+NOx	CO	PM
U‑R‑006‑0536	5/12/2023	RSZXL02.2PXB	DDI	DIESEL	Tier 4		3.2		0.01	0.02
U‑R‑006‑0537	5/12/2023	RSZXL02.2PXC	DDI	DIESEL	Tier 4		3.6		0.1	0.02
U‑R‑006‑0538	5/12/2023	RSZXL02.2ZTA	DDI	DIESEL	Tier 4		4.1		0.2	0.02
U‑R‑006‑0539	5/12/2023	RSZXL02.2ZTB	DDI	DIESEL	Tier 4		3.7		0.02	0.03
U‑R‑006‑0540	5/12/2023	RSZXL03.0PTA	DDI	DIESEL	Tier 4		4.1		0.2	0.02
U‑R‑006‑0541	5/16/2023	RSZXL03.0RXA	DDI	DIESEL	Tier 4	0.05	0.3		0.3	0.01
U‑R‑006‑0542	5/16/2023	RSZXL03.0RXB	DDI	DIESEL	Tier 4	0.04	0.16		0.2	0.01
U‑R‑006‑0543	5/16/2023	RSZXL05.2RXA	DDI	DIESEL	Tier 4	0.02	0.29		0.2	0.02
U‑R‑006‑0544	5/16/2023	RSZXL05.2RXB	DDI	DIESEL	Tier 4	0.01	0.12		0.05	0.02
U‑R‑006‑0545	6/8/2023	RSZXL05.2QXA	DDI	DIESEL	Tier 4	0.16	0.38		0.3	0.02
U‑R‑006‑0546	6/8/2023	RSZXL07.8QXA	DDI	DIESEL	Tier 4	0.02	0.38		0.2	0.02
U‑R‑006‑0547	6/8/2023	RSZXL07.8QXB	DDI	DIESEL	Tier 4	0.01	0.27		0	0.01
U‑R‑006‑0548	6/6/2023	RSZXL09.8QXA	DDI	DIESEL	Tier 4	0.02	0.35		0.1	0.02
U‑R‑006‑0549	6/8/2023	RSZXL15.7QXA	DDI	DIESEL	Tier 4	0.03	0.32		0.05	0.02
U‑R‑006‑0550	6/8/2023	RSZXL15.7QXB	DDI	DIESEL	Tier 4	0.02	0.15		0	0.02

KOHLER COMPANY

EO #	Date	Engine Family	Fuel System	Fuels	Tier	Cert Levels
						xxHC	NOx	xxHC+NOx	CO	PM
						xxHC	NOx	xxHC+NOx	CO	PM
U‑R‑060‑0098	6/22/2023	RKHXL.442ACF	DDI	DIESEL	Tier 4		5.6		1	0.47
U‑R‑060‑0099	6/22/2023	RKHXL01.4SF1	IDI	DIESEL	Tier 4		6.1		3.8	0.2
U‑R‑060‑0100	7/3/2023	RKHXN01.4SF1	IDI	DIESEL	Tier 4		4.7		3.3	0.37
U‑R‑060‑0100‑1	8/21/2023	RKHXN01.4SF1	IDI	DIESEL	Tier 4		4.7		3.3	0.37
U‑R‑060‑0101		RKHXL01.4KSE
U‑R‑060‑0102		RKHXL01.9DIM
U‑R‑060‑0103	8/15/2023	RKHXL02.5TCR	DDI	DIESEL	Tier 4		3.92		0.04	0.016
U‑R‑060‑0104	8/15/2023	RKHXL03.4TCR	DDI	DIESEL	Tier 4		3.44		0.13	0.011
U‑R‑060‑0105		RKHXL03.4TDS
U‑R‑060‑0106	8/15/2023	RKHXN01.9DIM	DDI	DIESEL	Tier 4		7.48		3.9	0.229
U‑R‑060‑0107	8/21/2023	RKHXN02.5DIM	DDI	DIESEL	Tier 4		5.41		2.28	0.086

LS MTRON, LTD.

EO #	Date	Engine Family	Fuel System	Fuels	Tier	Cert Levels
						xxHC	NOx	xxHC+NOx	CO	PM
						xxHC	NOx	xxHC+NOx	CO	PM
U‑R‑059‑0040		RLGCL01.9L3C
U‑R‑059‑0041		RLGCL01.9L3T
U‑R‑059‑0042	8/23/2023	RLGCL02.5L4T	DDI	DIESEL	Tier 4		3.8		0.08	0

MITSUBISHI HEAVY INDUSTRIES, LTD.

EO #	Date	Engine Family	Fuel System	Fuels	Tier	Cert Levels
						xxHC	NOx	xxHC+NOx	CO	PM
						xxHC	NOx	xxHC+NOx	CO	PM
U‑R‑035‑0399	6/8/2023	RMVXL01.1EDA	IDI	DIESEL	Tier 4		5.4		3.4	0.24
U‑R‑035‑0404	9/1/2023	RMVXL02.2EAA	DDI	DIESEL	Tier 4		3.99		0.6	0.008
U‑R‑035‑0405	9/1/2023	RMVXL02.2EBA	DDI	DIESEL	Tier 4		3.43		0.14	0.015

TURK TRAKTOR VE ZIRAAT MAKINALARI A.S.

EO #	Date	Engine Family	Fuel System	Fuels	Tier	Cert Levels
						xxHC	NOx	xxHC+NOx	CO	PM
						xxHC	NOx	xxHC+NOx	CO	PM
U‑R‑069‑0005	8/22/2023	RTTVL02.9WMS	DDI	DIESEL	Tier 4		4		0.5	0.02

YANMAR POWER TECHNOLOGY CO., LTD.

EO #	Date	Engine Family	Fuel System	Fuels	Tier	Cert Levels
						xxHC	NOx	xxHC+NOx	CO	PM
						xxHC	NOx	xxHC+NOx	CO	PM
U‑R‑028‑1089	2/1/2023	RYDXL.993NWB	IDI	DIESEL	Tier 4		5.8		2.8	0.19
U‑R‑028‑1090	1/31/2023	RYDXL01.3NWB	IDI	DIESEL	Tier 4		5.6		1.6	0.14
U‑R‑028‑1092	3/14/2023	RYDXL02.2NKA	DDI	DIESEL	Tier 4		6.3		1.4	0.02
U‑R‑028‑1094	5/8/2023	RYDXL02.2NFB	DDI	DIESEL	Tier 4		3.8		0.7	0.02
U‑R‑028‑1097	6/12/2023	RYDXN.570P2N	IDI	DIESEL	Tier 4		5.6		0.9	0.16
U‑R‑028‑1097‑1	7/26/2023	RYDXN.570P2N	IDI	DIESEL	Tier 4		5.6		0.9	0.16
U‑R‑028‑1098	5/19/2023	RYDXN.854P3N	IDI	DIESEL	Tier 4		6.4		0.8	0.12
U‑R‑028‑1098‑1	7/28/2023	RYDXN.854P3N	IDI	DIESEL	Tier 4		6.4		0.8	0.12
U‑R‑028‑1099	5/19/2023	RYDXN01.3P3N	IDI	DIESEL	Tier 4		3.4		0.6	0.1
U‑R‑028‑1099‑1	7/28/2023	RYDXN01.3P3N	IDI	DIESEL	Tier 4		3.4		0.6	0.1
U‑R‑028‑1100	5/24/2023	RYDXN01.6E3N	DDI	DIESEL	Tier 4		4.8		1.9	0.1
U‑R‑028‑1100‑1	7/24/2023	RYDXN01.6E3N	DDI	DIESEL	Tier 4		4.8		1.9	0.1
U‑R‑028‑1101	6/5/2023	RYDXL01.6NMA	DDI	DIESEL	Tier 4		6.2		3.4	0.17
U‑R‑028‑1102	6/9/2023	RYDXL01.3TPA	IDI	DIESEL	Tier 4		5.4		1.1	0.21

California Air Resources Board