New Vehicle and Engine Certification: Executive Orders for MY2024 Medium-Duty and Heavy-Duty 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 on-road medium-duty and heavy-duty engines have been issued during the 2024 model year, as of June 5, 2024.

Further information is available in the Executive Orders Summary.

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

CUMMINS, INC.

EO #	Date	Engine Family	Fuel System	Fuels	Weight Class	FTP Cert Levels (g/bhp‑hr)
						xxHC	NOx	xxHC+NOx	CO	CO2
						xxHC	NOx	xxHC+NOx	CO	CO2
A‑021‑0777	7/28/2023	RCEXH0540LDA	TBI	NATURAL GAS	Medium HD Diesel	0.01	0.011	0	1.5	465
A‑021‑0778	7/28/2023	RCEXH0540LDB	TBI	NATURAL GAS	Urban Bus	0.01	0.011	0	1.5	465
A‑021‑0779	7/26/2023	RCEXH0540LDC	TBI	NATURAL GAS	Heavy HD Diesel / Urban Bus	0.01	0.011	0	1.5	465
A‑021‑0783	10/23/2023	RCEXH0912XEA	DDI	DIESEL	Heavy HD Diesel	0.01	0.167	0	0.1	497
A‑021‑0784	10/23/2023	RCEXH0912XEB	DDI	DIESEL	Heavy HD Diesel	0.003	0.138	0	0.6	499
A‑021‑0784‑1	2/5/2024	RCEXH0912XEB	DDI	DIESEL	Heavy HD Diesel	0.003	0.14	0	1	499
A‑021‑0785	10/23/2023	RCEXH0912XEC	DDI	DIESEL	Heavy HD Diesel	0.004	0.142	0	0.85	519
A‑021‑0785‑1	2/5/2024	RCEXH0912XEC	DDI	DIESEL	Heavy HD Diesel	0.004	0.14	0	1.9	519
A‑021‑0786	10/23/2023	RCEXH0540LCA	DDI	DIESEL	Medium HD Diesel	0.03	0.09	0	0.11	523
A‑021‑0786‑1	1/18/2024	RCEXH0540LCA	DDI	DIESEL	Medium HD Diesel	0.03	0.09	0	0.11	523
A‑021‑0787	11/8/2023	RCEXH0408BCA	DDI	DIESEL	Medium HD Diesel	0.03	0.11	0	0.03	525
A‑021‑0788	12/18/2023	RCEXH0721XCA	DDI	DIESEL	Heavy HD Diesel / Urban Bus	0.01	0.14	0	0.2	506

DETROIT DIESEL CORPORATION

EO #	Date	Engine Family	Fuel System	Fuels	Weight Class	FTP Cert Levels (g/bhp‑hr)
						xxHC	NOx	xxHC+NOx	CO	CO2
						xxHC	NOx	xxHC+NOx	CO	CO2
A‑290‑0189	12/26/2023	RDDXH07.7MDC	DDI	DIESEL	Medium HD Diesel	0.03	0.08	0	0.5	520
A‑290‑0190	12/26/2023	RDDXH14.8TCC	DDI	DIESEL	Heavy HD Diesel	0.01	0.05	0	0.03	499
A‑290‑0191	12/26/2023	RDDXH15.6GEC	DDI	DIESEL	Heavy HD Diesel	0.003	0.063	0	0.1	505
A‑290‑0192	1/4/2024	RDDXH12.8NXC	DDI	DIESEL	Heavy HD Diesel	0.003	0.057	0	0.04	489

FORD MOTOR COMPANY

EO #	Date	Engine Family	Fuel System	Fuels	Weight Class	FTP Cert Levels (g/bhp‑hr)
						xxHC	NOx	xxHC+NOx	CO	CO2
						xxHC	NOx	xxHC+NOx	CO	CO2
A‑010‑2493	10/23/2023	RFMXE07.3BWU	SFI	GASOLINE	MD Otto	0.002	0.045	0	0.15	521
A‑010‑2495	12/4/2023	RFMXE07.3BW7	SFI	GASOLINE	HD Otto	0.045	0.032	0	3.28	610
A‑010‑2497	11/20/2023	RFMXH06.7P4A	DDI	DIESEL	Light HD Diesel	0.002	0.04	0	0.15	521
A‑010‑2498	11/20/2023	RFMXH06.7P4B	DDI	DIESEL	MD Otto	0.002	0.045	0	0.15	521
A‑010‑2500	11/20/2023	RFMXH06.7P5C	DDI	DIESEL	Medium HD Diesel	0.003	0.06	0	0.15	521

GENERAL MOTORS

EO #	Date	Engine Family	Fuel System	Fuels	Weight Class	FTP Cert Levels (g/bhp‑hr)
						xxHC	NOx	xxHC+NOx	CO	CO2
						xxHC	NOx	xxHC+NOx	CO	CO2
A‑006‑2409	8/14/2023	RGMXE06.6001	DGI	GASOLINE	HD Otto	0.06	0.04	0	1.7	606
A‑006‑2410	8/14/2023	RGMXE06.6001	DGI	GASOLINE	MD Otto	0.06	0.04	0	1.7	606
A‑006‑2411	9/25/2023	RGMXE06.6002	DGI	GASOLINE	HD Otto	0.03	0.024	0	3	602
A‑006‑2411‑1	10/20/2023	RGMXE06.6002	DGI	GASOLINE	HD Otto	0.03	0.024	0	3	602
A‑006‑2412	8/14/2023	RGMXE06.6003	DGI	GASOLINE	HD Otto	0.08	0.05	0	2.3	604
A‑006‑2413	8/14/2023	RGMXE06.6003	DGI	GASOLINE	MD Otto	0.08	0.06	0	2.4	604
A‑006‑2414	12/20/2023	RGMXH06.6010	DDI	DIESEL	Light HD Diesel	0.017	0.048	0	0.3	537

PACCAR INC

EO #	Date	Engine Family	Fuel System	Fuels	Weight Class	FTP Cert Levels (g/bhp‑hr)
						xxHC	NOx	xxHC+NOx	CO	CO2
						xxHC	NOx	xxHC+NOx	CO	CO2
A‑384‑0175	10/30/2023	RPCRH10.8C21	DDI	DIESEL	Heavy HD Diesel	0.01	0.12	0	0.2	497
A‑384‑0175‑1	11/7/2023	RPCRH10.8C21	DDI	DIESEL	Heavy HD Diesel	0.01	0.12	0	0.2	497
A‑384‑0176	10/30/2023	RPCRH12.9C21	DDI	DIESEL	Heavy HD Diesel	0.01	0.12	0	0.1	485
A‑384‑0176‑1	11/7/2023	RPCRH12.9C21	DDI	DIESEL	Heavy HD Diesel	0.01	0.12	0	0.1	485

ROUSH INDUSTRIES INC.

EO #	Date	Engine Family	Fuel System	Fuels	Weight Class	FTP Cert Levels (g/bhp‑hr)
						xxHC	NOx	xxHC+NOx	CO	CO2
						xxHC	NOx	xxHC+NOx	CO	CO2
A‑344‑0169	11/21/2023	RRIIE07.3BL5	SFI	LIQUIFIED PETROLEUM GAS	HD Otto	0.04	0.018	0	4.99	544.2
A‑344‑0169‑1	5/16/2024	RRIIE07.3BL5	SFI	LIQUIFIED PETROLEUM GAS	HD Otto	0.04	0.018	0	4.99	544.2
A‑344‑0171	10/20/2023	RRIIE07.3BW8	SFI	GASOLINE	HD Otto	0.02	0.016	0	2.73	603.6
A‑344‑0171‑1	5/16/2024	RRIIE07.3BW8	SFI	GASOLINE	HD Otto	0.02	0.016	0	2.73	603.6
A‑344‑0173	11/21/2023	RRIIE07.3BL3	SFI	LIQUIFIED PETROLEUM GAS	HD Otto	0.048	0.008	0	4.53	555.6
A‑344‑0173‑1	5/16/2024	RRIIE07.3BL3	SFI	LIQUIFIED PETROLEUM GAS	HD Otto	0.057	0.02	0	4.53	546

VOLVO GROUP TRUCKS TECHNOLOGY

EO #	Date	Engine Family	Fuel System	Fuels	Weight Class	FTP Cert Levels (g/bhp‑hr)
						xxHC	NOx	xxHC+NOx	CO	CO2
						xxHC	NOx	xxHC+NOx	CO	CO2
A‑242‑0241	12/8/2023	RVPTH10.8CA1	DDI	DIESEL	Heavy HD Diesel	0.001	0.09	0	0.2	512
A‑242‑0242	12/8/2023	RVPTH12.8CA1	DDI	DIESEL	Heavy HD Diesel	0.003	0.07	0	0.04	491
A‑242‑0243	12/8/2023	RVPTH12.8CA2	DDI	DIESEL	Heavy HD Diesel	0.003	0.13	0	0.03	482

California Air Resources Board