(A) The applicant must describe the applicability of the alternative diesel fuel or fuel additive to diesel engines and identify any requirements for engine or fuel system modifications.

(B) The applicant must provide a general description of the alternative diesel fuel or fuel additive that includes the fuel type, fuel characteristics, fuel properties, fuel formulation, and chemical composition. The applicant for the candidate alternative diesel fuel or fuel additive must specify the following:

(C) The applicant must provide information on the candidate alternative diesel fuel or fuel additive that may affect engine performance, engine wear, and safety. The applicant for the candidate alternative diesel fuel or fuel additive must specify the following:

(D) The applicant must provide information on the candidate alternative diesel fuel or fuel additive to determine if there are chemicals in the fuel or fuel additive that may increase levels of toxic compounds or potentially form toxic compounds in the fuel or fuel additive. The applicant will conduct an analysis for metals and elements by a method specified by the applicant. Copper, iron, cerium, lead, cadmium, chromium, and phosphorus must be included in the analysis. Additional analysis for other toxic compounds may be required after reviewing the chemical composition of the candidate alternative diesel fuel and its additives or fuel additive. (Note: For alternative diesel fuels or fuel additives that are in part comprised of standard diesel fuel, such as emulsified diesel fuels, a toxic analysis of the diesel base fuel is not necessary).

(E) With the approval of the Executive Officer or designee, an applicant may also specify different fuel parameters and test methods that are appropriate to better characterize the candidate alternative diesel fuel or fuel additive.

(A) Option (1). The first option is to use a 10 percent aromatic California diesel reference fuel. The reference fuel must be produced from straight-run California diesel fuel by a hydrodearomatization process and must have the characteristics set forth below under “Reference Fuel Specifications” (the listed ASTM methods are incorporated herein by reference).

(B) Option (2). The second option is to make the reference fuel from a custom blend using a “like” California diesel fuel made from a straight-run California diesel fuel by a hydroaromatization process and must have the characteristics set forth below under “Reference Fuel Specifications.” In addition the reference fuel must exhibit the bell shaped distillation curve characteristic of diesel fuel and no chemical feedstocks or pure chemicals such as solvents can be used as blend stocks. Details of the source and specifications of the feedstocks must be provided in the protocol and the processes and diesel feedstocks used to make the reference fuel must be reviewed and approved by the Executive Officer.

(C) Option (3). For alternative diesel fuels and fuel additives that contain diesel as a base fuel such as emulsified diesel fuel and 80:20 biodiesel fuel (80 percent diesel/20 percent biodiesel), the base diesel fuel used to make the alternative diesel fuel or fuel additive can be used in place of the 10 percent aromatic California diesel reference fuel. The base diesel fuel must be a certified, commercially available diesel fuel sold in California. The sulfur content, aromatic hydrocarbon content, polycyclic aromatic hydrocarbon content, nitrogen content, natural cetane number, API gravity, viscosity, and distillation specifications must be provided for the base diesel fuel used for the reference fuel.

(A) The applicant must follow the emission test requirements from section 2703 subsections (a), (b), (k), (l), and (m). For all on-road diesel vehicles and equipment, the applicant must conduct engine dynamometer testing using the Federal Test Procedure (FTP) Heavy-duty Transient Cycle, in accordance with the provisions in the Code of Federal Regulations, Title 40, Part 86, Subpart N. For all off-road and stationary diesel vehicles and equipment, the applicant must conduct engine dynamometer testing in accordance with section 2703(e)(2) and 2703(e)(3). The applicant must use one of the following test sequences:

(B) The applicant must submit a test schedule to the Executive Officer or designee at least one week prior to commencement of the tests. The test schedule must identify the days on which the tests will be conducted, and must provide for conducting test consecutively without substantial interruptions other than those resulting from the normal hours of operations at the test facility. The Executive Officer or designee should be permitted to observe any tests. The party conducting the tests must maintain a test log which identifies all tests conducted, all engine mapping procedures, all physical modifications to or operational tests of the engine, all recalibrations or other changes to the test instruments, and all interruptions between tests, and the reason for each interruption. The party conducting the tests or the applicant must notify the Executive Officer or designee by telephone and in writing of any unscheduled interruption resulting in a test delay of 48 hours or more, and the reason for such delay. Prior to restarting the test, the applicant or person conducting the tests must provide the Executive Officer or designee with a revised schedule for the remaining tests. All tests conducted in accordance with the test schedule, other than any test rejected in accordance with an outlier identification and exclusion procedure included in the approved test protocol, must be included in the comparison of emissions.

(C) Upon approval of the Executive Officer or designee, the applicant may specify an alternative test sequence to Section 2710(d)(3)(A). The applicant must provide the rationale demonstrating that the alternative test sequence better characterizes the average emissions difference between the reference fuel and the alternative diesel fuel or fuel additive.

(A) For strategies that do not include exhaust aftertreatment, labeling is required pursuant to section 2706(j) on the engine and the storage container for the alternative diesel fuel or fuel additive. This storage container may be either the fuel tank or a separate tank that is used to deliver the additive to the engine. Strategies that do not include exhaust aftertreatment are not required to identify the month and year of manufacturer or a unique serial number on their label.