## Uniform Engine Fuels, Petroleum Products, and Automotive Lubricants Regulation

as adopted by

The National Conference on Weights and Measures\*

**1. Background**

In 1984, the National Conference on Weights and Measures adopted a
section (2.20.) in the Uniform Regulation for the Method of Sale of
Com­modities requiring that motor fuels con­taining alcohol be labeled to
disclose to the retail purchaser that the fuel contains alcohol. The
delegates deemed this action necessary since motor vehicle manufac­turers
were qualify­ing their warranties with respect to some gasoline-alcohol
blends, motor fuel users were complaining to weights and measures
officials about fuel quality and vehicle performance, and the American
Society for Testing and Materials (ASTM) had not yet finalized quality
standards for oxy­genated (which includes alcohol-containing) fuels.
While many argued that weights and measures officials should not cross
the line from quantity assurance programs to programs regulating
quality, the delegates were persuaded that the issue needed im­mediate
attention.

A Motor Fuels Task Force was appointed in 1984 to develop mechanisms for
achieving uniformity in the evalu­ation and regu­lation of motor fuels.

The Task Force developed the Uniform Motor Fuel Inspection Law (see the
Uniform Laws section of this Handbook) and the Uniform Motor Fuel
Regulation to accompany the Law.

The recommended Law required registration and certification of motor
fuel as meeting ASTM standards. The regulation defined the ASTM
standards to be applied to motor fuel.

In 1992 the NCWM established the Petroleum Subcommittee under the Laws
and Regulations Committee. The subcommittee recommended major revisions
to the Regulation that was adopted at the 80th NCWM in 1995. The scope
of the regulation was expanded to include all engine fuels, petroleum
products, and automotive lubricants; its title was changed accordingly;
and the fuel specifications and method of sale sections were revised to
address the additional products. Other changes included expansion of the
definitions section and addition of sections on retail storage tanks,
condemned product, registration of engine fuels designed for special
use, and test methods and reproducibility limits.

**2. Status of Promulgation**

The Uniform Regulation for Engine Fuels, Petroleum Products, and
Automotive Lubricants was adopted by the Conference in 1995. The sta­tus
of State actions with respect to this Regulation is shown in the table
beginning on page 10.

\*The National Conference on Weights and Measures is supported by the
National Institute of S­tandards and Technology in partial implementation
of its statu­tory responsibility for \"cooperation with the States in
securing uniformity in weights and measures laws and methods of
inspection.\"

**THIS PAGE WAS INTENTIONALLY LEFT BLANK.**

**Table of Contents**

##### Section Page

[**1. Definitions** 153](#__RefHeading___Toc48655073)

[**1.1. ASTM** 153](#__RefHeading___Toc48655074)

[**1.2. Antiknock Index (AKI)** 153](#__RefHeading___Toc48655075)

[**1.3. Automotive Fuel Rating** 153](#__RefHeading___Toc48655076)

[**1.4. Automotive Gasoline, Automotive Gasoline-Oxygenate Blend**
153](#__RefHeading___Toc48655077)

[**1.5. Aviation Gasoline** 153](#__RefHeading___Toc48655078)

[**1.6. Aviation Turbine Fuel** 153](#__RefHeading___Toc48655079)

[**1.7. Base Gasoline** 153](#__RefHeading___Toc48655080)

[**1.8. Biodiesel** 153](#__RefHeading___Toc48655081)

[**1.9. Cetane Index** 153](#__RefHeading___Toc48655082)

[**1.10. Cetane Number** 153](#__RefHeading___Toc48655083)

[**1.11. Compressed Natural Gas (CNG)**
153](#__RefHeading___Toc48655084)

[**1.12. Denatured Fuel Ethanol** 153](#__RefHeading___Toc48655085)

[**1.13. Diesel Fuel** 153](#__RefHeading___Toc48655086)

[**1.14. Distillate** 153](#__RefHeading___Toc48655087)

[**1.15. EPA** 153](#__RefHeading___Toc48655088)

[**1.16. E85 Fuel Ethanol** 153](#__RefHeading___Toc48655089)

[**1.17. Engine Fuel** 154](#__RefHeading___Toc48655090)

[**1.18. Engine Fuels Designed for Special Use**
154](#__RefHeading___Toc48655091)

[**1.19. Ethanol** 154](#__RefHeading___Toc48655092)

[**1.20. Fuel Oil** 154](#__RefHeading___Toc48655093)

[**1.21. Gasoline** 154](#__RefHeading___Toc48655094)

[**1.22. Gasoline-Alcohol Blend** 154](#__RefHeading___Toc48655095)

[**1.23. Gasoline Gallon Equivalent (GGE)**
154](#__RefHeading___Toc48655096)

[**1.24. Gasoline Liter Equivalent (GLE)**
154](#__RefHeading___Toc48655097)

[**1.25. Gasoline-Oxygenate Blend** 154](#__RefHeading___Toc48655098)

[**1.26. Kerosene** 154](#__RefHeading___Toc48655099)

[**1.27. Lead Substitute** 154](#__RefHeading___Toc48655100)

[**1.28. Lead Substitute Engine Fuel** 154](#__RefHeading___Toc48655101)

[**1.29. Leaded** 154](#__RefHeading___Toc48655102)

[**1.30. Liquefied Natural Gas (LNG)** 154](#__RefHeading___Toc48655103)

[**1.31. Liquefied Petroleum Gas (LPG)**
154](#__RefHeading___Toc48655104)

[**1.32. Low Sulfur** 154](#__RefHeading___Toc48655105)

[**1.33. Low Temperature Operability** 154](#__RefHeading___Toc48655106)

[**1.34. Lubricity** 155](#__RefHeading___Toc48655107)

[**1.35. M100 Fuel Methanol** 155](#__RefHeading___Toc48655108)

[**1.36. M85 Fuel Methanol** 155](#__RefHeading___Toc48655109)

[**1.37. Motor Octane Number** 155](#__RefHeading___Toc48655110)

[**1.38. Oxygen Content of Gasoline** 155](#__RefHeading___Toc48655111)

[**1.39. Oxygenate** 155](#__RefHeading___Toc48655112)

[**1.40. Reformulated Gasoline** 155](#__RefHeading___Toc48655113)

[**1.41. Research Octane Number** 155](#__RefHeading___Toc48655114)

[**1.42. SAE** 155](#__RefHeading___Toc48655115)

[**1.43. Substantially Similar** 155](#__RefHeading___Toc48655116)

[**1.44. Thermal Stability** 155](#__RefHeading___Toc48655117)

[**1.45. Total Alcohol** 155](#__RefHeading___Toc48655118)

[**1.46. Total Oxygenate** 155](#__RefHeading___Toc48655119)

[**1.47. Unleaded** 155](#__RefHeading___Toc48655120)

[**1.48. Wholesale Purchaser Consumer**
155](#__RefHeading___Toc48655121)

[**2. Standard Fuel Specifications** 155](#__RefHeading___Toc48655122)

[**2.1. Gasoline and Gasoline-Oxygenate Blends**
156](#__RefHeading___Toc48655123)

[**2.2. Diesel Fuel** 156](#__RefHeading___Toc48655124)

[**2.3. Aviation Turbine Fuels** 157](#__RefHeading___Toc48655125)

[**2.4. Aviation Gasoline** 157](#__RefHeading___Toc48655126)

[**2.5. Fuel Oils** 157](#__RefHeading___Toc48655127)

[**2.6. Kerosene (Kerosine)** 157](#__RefHeading___Toc48655128)

[**2.7. Ethanol** 157](#__RefHeading___Toc48655129)

[**2.8. Liquefied Petroleum (LP) Gases**
157](#__RefHeading___Toc48655130)

[**2.9. Compressed Natural Gas (CNG)** 157](#__RefHeading___Toc48655131)

[**2.10. E85 Fuel Ethanol** 157](#__RefHeading___Toc48655132)

[**2.11. M85 Fuel Methanol** 157](#__RefHeading___Toc48655133)

[**3. Classification and Method of Sale of Petroleum Products**
157](#__RefHeading___Toc48655134)

[**3.1. General Considerations** 157](#__RefHeading___Toc48655135)

[**3.2. Automotive Gasoline and Automotive Gasoline-Oxygenate Blends**
158](#__RefHeading___Toc48655136)

[**3.3. Diesel Fuel** 159](#__RefHeading___Toc48655137)

[**3.4. Aviation Turbine Fuels** 159](#__RefHeading___Toc48655138)

**[3.5. Aviation Gasoline](#AviationGasoline) 159**

[**3.6. Fuel Oils** 160](#__RefHeading___Toc48655139)

[**3.7. Kerosene (Kerosine)** 160](#__RefHeading___Toc48655140)

[**3.8. Fuel Ethanol** 160](#__RefHeading___Toc48655141)

[**3.9. Fuel Methanol** 160](#__RefHeading___Toc48655142)

[**3.10. Liquefied Petroleum (LP) Gas**
160](#__RefHeading___Toc48655143)

[**3.11. Compressed Natural Gas** 161](#__RefHeading___Toc48655144)

[**3.12. Liquefied Natural Gas** 161](#__RefHeading___Toc48655145)

[**4. Retail Storage Tanks** 161](#__RefHeading___Toc48655146)

[**4.1. Water in Gasoline-Alcohol Blends, Aviation Gas, and Aviation
Turbine Fuel** 161](#__RefHeading___Toc48655147)

[**4.2. Water in Gasoline, Diesel, Gasoline-Ether, and Other Fuels**
161](#__RefHeading___Toc48655148)

[**4.3. Product Storage Identification**
162](#__RefHeading___Toc48655149)

[**4.4. Volume of Product Information**
162](#__RefHeading___Toc48655150)

[**5. Condemned Product** 162](#section-5.-condemned-product)

[**5.1. Stop-Sale Order at Retail** 162](#__RefHeading___Toc48655152)

[**5.2. Stop-Sale Order at Terminal or Bulk Plant Facility**
162](#__RefHeading___Toc48655153)

[**6. Product Registration** 162](#__RefHeading___Toc48655154)

[**6.1. Engine Fuels Designed for Special Use**
162](#__RefHeading___Toc48655155)

[**6.2. Renewal** 162](#__RefHeading___Toc48655156)

[**6.3. Re-registration** 162](#__RefHeading___Toc48655157)

[**6.4. Authority to Deny Registration**
162](#__RefHeading___Toc48655158)

[**6.5. Transferability** 163](#__RefHeading___Toc48655159)

[**7. Test Methods and Reproducibility Limits**
163](#__RefHeading___Toc48655160)

[**7.1. ASTM Standard Test Methods** 163](#__RefHeading___Toc48655161)

[7.2. Reproducibility Limits 163](#__RefHeading___Toc48655162)

**Uniform Engine Fuels, Petroleum Products,**

**and Automotive Lubricants Regulation**

**Section 1. Definitions**[]{#__RefHeading___Toc48655073 .anchor}

**1.1. ASTM**[]{#__RefHeading___Toc48655074 .anchor}**.** \-- The
American Society for Testing and Materials means the national voluntary
consensus standards organization formed for the development of standards
on characteristics and performance of materials, products, systems, and
services, and the promotion of related knowledge.

**1.2. Antiknock Index (AKI)**[]{#__RefHeading___Toc48655075
.anchor}**.** \-- means the arithmetic average of the Research Octane
Number (RON) and Motor Octane Number (MON): AKI = (RON+MON)/2. This
value is called by a variety of names, in addition to antiknock index,
including: octane rating, posted octane, (R+M)/2 octane.

**1.3. Automotive Fuel Rating**[]{#__RefHeading___Toc48655076
.anchor}**.** \-- means the automotive fuel rating required under the
amended Octane Certification and Posting Rule (or as amended, the Fuel
Rating Rule), 16 CFR Part 306. Under this Rule, sellers of liquid
automotive fuels, including alternative fuels, must determine, certify,
and post an appropriate automotive fuel rating. The automotive fuel
rating for gasoline is the antiknock index (octane rating). The
automotive fuel rating for alternative liquid fuels consists of the
common name of the fuel, along with a disclosure of the amount,
expressed as a minimum percentage by volume of the principal component
of the fuel. For alternative liquid automotive fuels, a disclosure of
other components, expressed as a minimum percentage by volume, may be
included, if desired.

**1.4. Automotive Gasoline, Automotive Gasoline-Oxygenate
Blend**[]{#__RefHeading___Toc48655077 .anchor}**.** \-- means a type of
fuel suitable for use in spark‑ignition automobile engines and also
commonly used in marine and non-automotive applications.

**1.5. Aviation Gasoline**[]{#__RefHeading___Toc48655078 .anchor}**.**
\-- means a type of gasoline suitable for use as a fuel in an aviation
spark-ignition internal combustion engine.

**1.6. Aviation Turbine Fuel**[]{#__RefHeading___Toc48655079
.anchor}**.** \-- means a refined middle distillate suitable for use as
a fuel in an aviation gas turbine internal combustion engine.

**1.7. Base Gasoline**[]{#__RefHeading___Toc48655080 .anchor}**.** \--
means all components other than ethanol in a blend of gasoline and
ethanol.

**1.8. Biodiesel**[]{#__RefHeading___Toc48655081 .anchor}**.** \-- means
a blend consisting of diesel fuel and a substantial amount of esterified
animal fats and/or vegetable oil(s).

**1.9. Cetane Index**[]{#__RefHeading___Toc48655082 .anchor}**.** \--
means an approximation of the cetane number of distillate diesel fuel,
which does not contain a cetane improver additive, calculated from the
density and distillation measurements.

**1.10. Cetane Number**[]{#__RefHeading___Toc48655083 .anchor}**.** \--
means a numerical measure of the ignition performance of a diesel fuel
obtained by comparing it to reference fuels in a standardized engine
test.

**1.11. Compressed Natural Gas (CNG)**[]{#__RefHeading___Toc48655084
.anchor}**.** \-- means natural gas which has been compressed and
dispensed into fuel storage containers and is suitable for use as an
engine fuel.

**1.12. Denatured Fuel Ethanol**[]{#__RefHeading___Toc48655085
.anchor}**.** \-- means \"ethanol\" as defined in § 1.19. below.

**1.13. Diesel Fuel**[]{#__RefHeading___Toc48655086 .anchor}**.** \--
means a refined middle distillate suitable for use as a fuel in a
compression-ignition (diesel) internal combustion engine.

**1.14. Distillate**[]{#__RefHeading___Toc48655087 .anchor}**.** \--
means any product obtained by condensing the vapors given off by boiling
petroleum or its products.

**1.15. EPA**[]{#__RefHeading___Toc48655088 .anchor}**.** \-- means the
United States Environmental Protection Agency.

**1.16. E85 Fuel Ethanol**[]{#__RefHeading___Toc48655089 .anchor}**.**
\-- means a blend of ethanol and hydrocarbons of which the ethanol
portion is nominally 85 to 75 volume percent denatured fuel ethanol.

**1.17. Engine Fuel**[]{#__RefHeading___Toc48655090 .anchor}**.** \--
means any liquid or gaseous matter used for the generation of power in
an internal combustion engine.

**1.18. Engine Fuels Designed for Special
Use**[]{#__RefHeading___Toc48655091 .anchor}**.** \-- means engine fuels
designated by the Director as requiring registration. These fuels
normally do not have ASTM or other national consensus standards applying
to their quality or usability; common special fuels are racing fuels and
those intended for agricultural and other off-road applications.

**1.19. Ethanol**[]{#__RefHeading___Toc48655092 .anchor}**.** \-- also
known as \"Denatured Fuel Ethanol,\" means nominally anhydrous ethyl
alcohol meeting ASTM D 4806 standards. It is intended to be blended with
gasoline for use as a fuel in a spark-ignition internal combustion
engine. The denatured fuel ethanol is first made unfit for drinking by
the addition of Bureau of Alcohol, Tobacco, and Firearms (BATF) approved
substances before blending with gasoline.

**1.20. Fuel Oil**[]{#__RefHeading___Toc48655093 .anchor}**.** \-- means
a refined oil middle distillates, heavy distillates, or residues of
refining, or blends of these, suitable for use as a fuel for heating or
power generation, the classification of which shall be defined by ASTM D
396.

**1.21. Gasoline**[]{#__RefHeading___Toc48655094 .anchor}**.** \-- means
a volatile mixture of liquid hydrocarbons generally containing small
amounts of additives suitable for use as a fuel in a spark-ignition
internal combustion engine.

**1.22. Gasoline-Alcohol Blend**[]{#__RefHeading___Toc48655095
.anchor}**.** \-- means a fuel consisting primarily of gasoline and a
substantial amount (more than 0.35 mass percent of oxygen, or more than
0.15 mass percent of oxygen if methanol is the only oxygenate) of one or
more alcohols.

**1.23. Gasoline Gallon Equivalent (GGE)**[]{#__RefHeading___Toc48655096
.anchor}**.** \-- Gasoline gallon equivalent (GGE) means 2.567 kg (5.660
lb) of natural gas.

**1.24. Gasoline Liter Equivalent (GLE)**[]{#__RefHeading___Toc48655097
.anchor}**.** \-- Gasoline liter equivalent (GLE) means 0.678 kg (1.495
lb) of natural gas.

**1.25. Gasoline-Oxygenate Blend**[]{#__RefHeading___Toc48655098
.anchor}**.** \-- means a fuel consisting primarily of gasoline along
with a substantial amount (more than 0.35 mass percent of oxygen, or
more than 0.15 mass percent of oxygen if methanol is the only oxygenate)
of one or more oxygenates.

**1.26. Kerosene** []{#__RefHeading___Toc48655099 .anchor}**.** \-- (or
\"Kerosine\") means a refined middle distillate suitable for use as a
fuel for heating or illuminating, the classification of which shall be
defined by ASTM D 3699.

**1.27. Lead Substitute**[]{#__RefHeading___Toc48655100 .anchor}**.**
\-- means an EPA-registered gasoline additive suitable, when added in
small amounts to fuel, to reduce or prevent exhaust valve recession (or
seat wear) in automotive spark-ignition internal combustion engines
designed to operate on leaded fuel.

**1.28. Lead Substitute Engine Fuel**[]{#__RefHeading___Toc48655101
.anchor}**.** \-- means, for labeling purposes, a gasoline or
gasoline-oxygenate blend that contains a \"lead substitute.\"

**1.29. Leaded**[]{#__RefHeading___Toc48655102 .anchor}**.** \-- means,
for labeling purposes, any gasoline or gasoline-oxygenate blend which
contains more than 0.013 g of lead per liter (0.05 g lead per U.S. gal).
NOTE: EPA defines leaded fuel as one which contains more than 0.0013 g
of phosphorus per liter (0.005 g per U.S. gal), or any fuel to which
lead or phosphorus is intentionally added.

**1.30. Liquefied Natural Gas (LNG)**[]{#__RefHeading___Toc48655103
.anchor}**.** \-- means natural gas that has been liquefied at -126.1 C
(‑259 F) and stored in insulated cryogenic tanks for use as an engine
fuel.

**1.31. Liquefied Petroleum Gas (LPG)**[]{#__RefHeading___Toc48655104
.anchor}**.** \-- means a mixture of normally gaseous hydrocarbons,
predominantly propane, or butane, or both, that has been liquefied by
compression or cooling, or both to facilitate storage, transport, and
handling.

**1.32. Low Sulfur**[]{#__RefHeading___Toc48655105 .anchor}**.** \--
means low sulfur diesel fuel that meets ASTM D 975 (e.g., Grade Low
Sulfur No. 1-D or Grade Low Sulfur No. 2-D) standards. Diesel fuel
containing higher amounts of sulfur for off-road use is defined by EPA
regulations.

**1.33. Low Temperature Operability**[]{#__RefHeading___Toc48655106
.anchor}**.** \-- means a condition which allows the uninterrupted
operation of a diesel engine through the continuous flow of fuel
throughout its fuel delivery system at low temperatures. Fuels with
adequate low temperature operability characteristics have the ability to
avoid wax precipitation and clogging in fuel filters.

(Added 1998)(Amended 1999)

1.34. Lubricity. []{#__RefHeading___Toc48655107 .anchor} \-- a
qualitative term describing the ability of a fluid to affect friction
between, and wear to, surfaces in relative motion under load. (Added
2003)

**1.35. M100 Fuel Methanol**[]{#__RefHeading___Toc48655108 .anchor}**.**
\-- means nominally anhydrous methyl alcohol, generally containing small
amounts of additives, suitable for use as a fuel in a
compression-ignition internal combustion engine.

**1.36. M85 Fuel Methanol**[]{#__RefHeading___Toc48655109 .anchor}**.**
\-- means a blend of methanol and hydrocarbons of which the methanol
portion is nominally 70 to 85 volume percent.

**1.37. Motor Octane Number**[]{#__RefHeading___Toc48655110
.anchor}**.** \-- means a numerical indication of a spark-ignition
engine fuel\'s resistance to knock obtained by comparison with reference
fuels in a standardized ASTM D 2700 Motor Method engine test.

**1.38. Oxygen Content of Gasoline**[]{#__RefHeading___Toc48655111
.anchor}**.** \-- means the percentage of oxygen by mass contained in a
gasoline.

**1.39. Oxygenate**[]{#__RefHeading___Toc48655112 .anchor}**.** \--
means an oxygen-containing, ashless, organic compound, such as an
alcohol or ether, which can be used as a fuel or fuel supplement.

**1.40. Reformulated Gasoline**[]{#__RefHeading___Toc48655113
.anchor}**.** \-- means a volatile mixture of liquid hydrocarbons and
oxygenates meeting the reformulated gasoline requirements of the Clean
Air Act Amendments of 1990 and suitable for use as a fuel in a
spark-ignition internal combustion engine.

**1.41. Research Octane Number**[]{#__RefHeading___Toc48655114
.anchor}**.** \-- means a numerical indication of a spark-ignition
engine fuel\'s resistance to knock obtained by comparison with reference
fuels in a standardized ASTM D 2699 Research Method Engine Test.

**1.42. SAE**[]{#__RefHeading___Toc48655115 .anchor}**.** \-- means the
Society of Automotive Engineers, a technical organization for engineers,
scientists, technicians, and others in positions that cooperate closely
in the engineering, design, manufacture, use, and maintainability of
self-propelled vehicles.

**1.43. Substantially Similar**[]{#__RefHeading___Toc48655116
.anchor}**.** \-- means the EPA\'s \"Substantially Similar\" rule,
Section 211 (f) (1) of the Clean Air Act \[42 U.S.C. 7545 (f) (1)\].

**1.44. Thermal Stability**[]{#__RefHeading___Toc48655117 .anchor}**.**
\--means the ability of a fuel to resist the thermal stress which is
experienced by the fuel when exposed to high temperatures in a fuel
delivery system. Such stress can lead to formation of insoluble gums or
organic particulates. Insolubles (e.g., gums or organic particulates)
can clog fuel filters and contribute to injector deposits.

(Added 1998)(Amended 1999)

**1.45. Total Alcohol**[]{#__RefHeading___Toc48655118 .anchor}**.** \--
means the aggregate total in volume percent of all alcohol contained in
any fuel defined in this Chapter.

**1.46. Total Oxygenate**[]{#__RefHeading___Toc48655119 .anchor}**.**
\-- means the aggregate total in volume percent of all oxygenates
contained in any fuel defined in this Chapter.

**1.47. Unleaded**[]{#__RefHeading___Toc48655120 .anchor}**.** \-- in
conjunction with \"engine fuel\" or \"gasoline\" means any gasoline or
gasoline-oxygenate blend to which no lead or phosphorus compounds have
been intentionally added and which contains not more than 0.013 gram of
lead per liter (0.05 g lead per U.S. gal) and not more than 0.0013 gram
of phosphorus per liter (0.005 g phosphorus per U.S. gal).

**1.48. Wholesale Purchaser Consumer**[]{#__RefHeading___Toc48655121
.anchor}**.** - means any person who is an ultimate gasoline consumer of
fuel methanol, fuel ethanol, diesel fuel, biodiesel, fuel oil, kerosene,
aviation turbine fuels, natural gas, compressed natural gas, or
liquefied petroleum gas and who purchases or obtains the product from a
supplier and receives delivery of that product into a storage tank.

(Added 1998)(Amended 1999)

**Section 2. Standard Fuel
Specifications**[]{#__RefHeading___Toc48655122 .anchor}

**2.1. Gasoline and Gasoline-Oxygenate Blends**
[]{#__RefHeading___Toc48655123 .anchor} (as defined in this regulation)
shall meet the following requirements:

> **2.1.1.** The most recent version of ASTM D 4814, \"Standard
> Specification for Automotive Spark­‑Ignition Engine Fuel,\" except that
> volatility standards for unleaded gasoline blended with ethanol shall
> not be more restrictive than those adopted under the rules,
> regula­tions, and Clean Air Act waivers of the U.S. Environmental
> Protection Agency (which includes rules promulgated by the State).
> Gasoline blended with ethanol shall be blended under any of the
> following three options:
>
> **2.1.1.1.** The base gasoline used in such blends shall meet the
> requirements of ASTM D 4814, or
>
> **2.1.1.2.** The blend shall meet the requirements of ASTM D 4814, or
>
> **2.1.1.3.** The base gasoline used in such blends shall meet all the
> requirements of ASTM D 4814 except distillation, and the blend shall
> meet the distillation requirements of the ASTM specification.
>
> **2.1.2.** Blends of gasoline and ethanol shall not exceed the ASTM D
> 4814 vapor pressure standard by more than 1.0 psi.
>
> **2.1.3. Minimum Antiknock Index (AKI).** \-- The AKI shall not be
> less than the AKI posted on the product dispenser or as certified on
> the invoice, bill of lading, shipping paper, or other documentation;
>
> **2.1.4. Minimum Motor Octane Number.** \-- The minimum motor octane
> number shall not be less than 82 for gasoline with an AKI of 87 or
> greater;
>
> **2.1.5. Minimum Lead Content to Be Termed \"Leaded\".** \-- Gasoline
> and gasoline‑oxygenate blends sold as \"leaded\" shall contain a
> minimum of 0.013 gram of lead per liter (0.05 g per U.S. gal);
>
> **2.1.6.** **Lead Substitute Gasoline.** \-- Gasoline and
> gasoline-oxygenate blends sold as \"lead substitute\" gasoline shall
> contain a lead substitute which provides protection against exhaust
> valve seat recession equivalent to at least 0.026 gram of lead per
> liter (0.10 g per U.S. gal).
>
> **2.1.6.1.** **Documentation of Exhaust Valve Seat Protection.** \--
> Upon the request of the director, the lead substitute additive
> manufacturer shall provide documentation to the director that
> demonstrates that the treatment level recommended by the additive
> manufacturer provides protection against exhaust valve seat recession
> equivalent to or better than 0.026 gram per liter (0.1 g/gal) lead.
> The director may review the documentation and approve the lead
> substitute additive before such additive is blended into gasoline.
> This documentation shall consist of:
>
> **2.1.6.1.1.** Test results as published in the Federal Register by
> the EPA Administrator as required in Section 211(f)(2) of the Clean
> Air Act; or
>
> **2.1.6.1.2.** Until such time as the EPA Administrator develops and
> publishes a test procedure to determine the additive\'s effectiveness
> in reducing valve seat wear, test results and description of the test
> procedures used in comparing the effectiveness of 0.026 gram per liter
> lead and the recommended treatment level of the lead substitute
> additive shall be provided.
>
> **2.1.7. Blending.** \-- Leaded, lead substitute, and unleaded
> gasoline-oxygenate blends shall be blended according to the EPA
> \"substantially similar\" rule or an EPA waiver for unleaded fuel.

**2.2. Diesel Fuel** []{#__RefHeading___Toc48655124 .anchor} shall meet
the most recent version of ASTM D 975, \"Standard Specification for
Diesel Fuel Oils.\"

> **2.2.1. Premium Diesel Fuel ‑** All diesel fuels identified on retail
> dispensers, bills of lading, invoices, shipping papers, or other
> documentation with terms such as premium, super, supreme, plus, or
> premier must conform to the following requirements:
>
> **(a) Cetane Number ‑** A minimum cetane number of 47.0 as determined
> by ASTM Standard Test Method D 613.
>
> **(b)** **Low Temperature Operability ‑** A cold flow performance
> measurement which meets the ASTM D 975 tenth percentile minimum
> ambient air temperature charts and maps by either ASTM Standard Test
> Method D 2500 (Cloud Point) or ASTM Standard Test Method D 4539 (Low
> Temperature Flow Test, LTFT). Low temperature operability is only
> applicable October 1 ‑ March 31 of each year.
>
> **(c) Thermal Stability ‑** A minimum reflectance measurement of 80
> percent as determined by ASTM Standard Test Method D 6468 (180
> minutes, 150 °C).
>
> **(d) Lubricity** -- A maximum wear scar diameter of 520 microns as
> determined by ASTM D 6079. If an enforcement jurisdiction's single
> test of more than 560 microns is determined, a second test shall be
> conducted. If the average of the two tests is more than 560 microns,
> the sample does not conform to the requirements of this part.

(Amended 2003)

**2.3. Aviation Turbine Fuels** []{#__RefHeading___Toc48655125 .anchor}
shall meet the most recent version of ASTM D 1655, \"Standard
Specification for Aviation Turbine Fuels.\"

**2.4. Aviation Gasoline** []{#__RefHeading___Toc48655126 .anchor} shall
meet the most recent version of ASTM D 910, \"Standard Specification for
Aviation Gasoline.\"

**2.5. Fuel Oils** []{#__RefHeading___Toc48655127 .anchor} shall meet
the most recent version of ASTM D 396, \"Standard Specification for Fuel
Oils.\"

**2.6. Kerosene (Kerosine)** []{#__RefHeading___Toc48655128 .anchor}
shall meet the most recent version of ASTM D 3699, \"Standard
Specification for Kerosine.\"

**2.7. Ethanol** []{#__RefHeading___Toc48655129 .anchor} intended for
blending with gasoline shall meet the most recent version of ASTM D
4806, \"Standard Specification for Denatured Fuel Ethanol for Blending
with Gasolines for Use as Automotive Spark-Ignition Engine Fuel.\"

**2.8. Liquefied Petroleum (LP) Gases** []{#__RefHeading___Toc48655130
.anchor} shall meet ASTM D 1835, \"Standard Specification for Liquefied
Petroleum (LP) Gases.\"

**Note:** Also reference Gas Processors Association 2140, \"Liquefied
Petroleum Gas Specification and Test Methods.\"

**2.9. Compressed Natural Gas (CNG)** []{#__RefHeading___Toc48655131
.anchor} shall meet the most recent version of SAE J 1616, \"Recommended
Practice for Compressed Natural Gas Vehicle Fuel.\"

**2.10. E85 Fuel Ethanol** []{#__RefHeading___Toc48655132 .anchor} shall
meet the most recent version of ASTM D 5798, \"Standard Specification
for Fuel Ethanol (Ed75-Ed85) for Automotive Spark-Ignition Engines.\"

(Added 1997)

**2.11. M85 Fuel Methanol** []{#__RefHeading___Toc48655133 .anchor}
shall meet the most recent version of ASTM D 5797, \"Standard
Specification for Fuel Methanol M70-M85 for Automotive Spark Ignition
Engines.\"

(Added 1997)

**Section 3. Classification and Method of Sale of Petroleum
Products**[]{#__RefHeading___Toc48655134 .anchor}

**3.1. General Considerations** []{#__RefHeading___Toc48655135 .anchor}

> **3.1.1. Documentation.** \-- When gasoline, gasoline-oxygenate
> blends, reformulated gasoline, M85 and M100 fuel methanol, E85 and
> E100 fuel ethanol, liquefied petroleum (LP) gases, compressed natural
> gas, liquefied natural gas, biodiesel, diesel fuel, kerosene, aviation
> gasoline, aviation turbine fuels, or fuel oils are sold, an invoice,
> bill of lading, shipping paper or other documentation must accompany
> each delivery other than a retail sale. This document must identify
> the quantity, the name of the product, the particular grade of the
> product, the applicable automotive fuel rating, and oxygenate type and
> content (if applicable), the name and address of the seller and buyer,
> and the date and time of the sale. Documentation must be retained at
> the retail establishment for a period not less than 1 year.
>
> **3.1.2. Retail Dispenser Labeling.** \-- All retail dispensing
> devices must identify conspicuously the type of product, the
> particular grade of the product, and the applicable automotive fuel
> rating.
>
> **3.1.3. Grade Name.** \-- The sale of any product under any grade
> name that indicates to the purchaser that it is of a certain
> automotive fuel rating or ASTM grade shall not be permitted unless the
> automotive fuel rating or grade indicated in the grade name is
> consistent with the value and meets the requirements of Section 2,
> Standard Fuel Specifications.

**3.2. Automotive Gasoline and Automotive Gasoline-Oxygenate Blends**
[]{#__RefHeading___Toc48655136 .anchor}

> **3.2.1.** **Posting of Antiknock Index Required.** \-- All automotive
> gasoline and automotive gasoline-oxygenate blends shall post the
> antiknock index in accordance with applicable regulations, 16 CFR Part
> 306 issued pursuant to the Petroleum Marketing Practices Act, as
> amended.
>
> **3.2.2.** **When the Term \"Leaded\" may be Used.** \-- The term
> \"leaded\" shall only be used when the fuel meets specification
> requirements of paragraph 2.1.5.
>
> **3.2.3.** **Use of Lead Substitute must be Disclosed.** \-- Each
> dispensing device from which gasoline or gasoline-oxygenate blends
> containing a lead substitute is dispensed shall display the following
> legend: \"Contains Lead Substitute.\" The lettering of this legend
> shall not be less than 12 mm (1/2 in) in height and the color of the
> lettering shall be in definite contrast to the background color to
> which it is applied.
>
> **3.2.4.** **Nozzle Requirements for Leaded Fuel.** \-- Each
> dispensing device from which gasoline or gasoline-oxygenate blends
> that contain lead in amounts sufficient to be considered \"leaded\"
> gasoline, or lead substitute engine fuel, is sold shall be equipped
> with a nozzle spout having a terminal end with an outside diameter of
> not less than 23.63 mm (0.930 in).
>
> **3.2.5.** **Prohibition of Terms.** \-- It is prohibited to use
> specific terms to describe a grade of gasoline or gasoline-oxygenate
> blend unless it meets the minimum antiknock index requirement shown in
> Table 1.
>
> **3.2.6. Method of Retail Sale.** \-- **Type of Oxygenate must be
> Disclosed.** \-- All automotive gasoline or automotive
> gasoline-oxygenate blends kept, offered, or exposed for sale, or sold
> at retail containing at least 1.5 mass percent oxygen shall be
> identified as "with" or "containing" (or similar wording) the
> predominant oxygenate in the engine fuel. For example, the label may
> read "contains ethanol" or "with MTBE." The oxygenate contributing the
> largest mass percent oxygen to the blend shall be considered the
> predominant oxygenate. Where mixtures of only ethers are present, the
> retailer may post the predominant oxygenate followed by the phrase "or
> other ethers" or alternatively post the phrase "contains MTBE or other
> ethers." In addition, gasoline-methanol blend fuels containing more
> than 0.15 mass percent oxygen from methanol shall be identified as
> "with" or "containing" methanol. This information shall be posted on
> the upper 50 percent of the dispenser front panel in a position clear
> and conspicuous from the driver's position in a type at least 12.7 mm
> (½ in) in height, 1.5 mm (1/16 in) stroke (width of type).
>
> (Amended 1996)
>
> **3.2.7. Documentation for Dispenser Labeling Purposes.** \-- The
> retailer shall be provided, at the time of delivery of the fuel, on an
> invoice, bill of lading, shipping paper, or other documentation, a
> declaration of the predominant oxygenate or combination of oxygenates
> present in concentrations sufficient to yield an oxygen content of at
> least 1.5 mass percent in the fuel. Where mixtures of only ethers are
> present, the fuel supplier may identify either the predominant
> oxygenate in the fuel (i.e., the oxygenate contributing the largest
> mass percent oxygen) or, alternatively, use the phrase "contains MTBE
> or other ethers." In addition, any gasoline containing more than 0.15
> mass percent oxygen from methanol shall be identified as "with" or
> "containing" methanol. This documentation is only for dispenser
> labeling purposes; it is the responsibility of any potential blender
> to determine the total oxygen content of the engine fuel before
> blending. (Amended 1996)

**3.3. Diesel Fuel** []{#__RefHeading___Toc48655137 .anchor}

> **3.3.1.** **Labeling of Grade Required.** \-- Diesel Fuel shall be
> identified by grades No. 1-D, No. 1-D (low sulfur), No. 2-D, No. 2-D
> (low sulfur), or No. 4-D. Each retail dispenser of diesel fuel shall
> be labeled according to the grade being dispensed except the words
> \"low sulfur\" are not required.
>
> **3.3.2. Location of Label.** \-- These labels shall be located on the
> upper 50 percent of the dispenser front panel in a position clear and
> conspicuous from the driver's position, in a type at least 12 mm (1/2
> in) in height, 1.5 mm (1/16 in) stroke (width of type).
>
> **3.3.3. Delivery Documentation -**‑ Before or at the time of delivery
> of premium diesel fuel, the retailer or the wholesale
> purchaser‑consumer shall be provided on an invoice, bill of lading,
> shipping paper, or other documentation a declaration of all
> performance properties that qualifies the fuel as premium diesel fuel
> as required in § 2.2.1.
>
> (Added 1998) (Amended 1999)

+--------------------+----------------------+-------------------------+
| **Table 1. Minimum |                      |                         |
| Antiknock Index    |                      |                         |
| Requirements**     |                      |                         |
+--------------------+----------------------+-------------------------+
|                    | **Minimum Antiknock  |                         |
|                    | Index**              |                         |
+--------------------+----------------------+-------------------------+
| # Term             | **ASTM D 4814        | # All                   |
|                    | Altitude Reduction   | Other ASTM D 4814 Areas |
|                    | Areas IV and V**     |                         |
+--------------------+----------------------+-------------------------+
| Premium, Super,    | 90                   | 91                      |
| Supreme, High Test |                      |                         |
+--------------------+----------------------+-------------------------+
| Midgrade, Plus     | 87                   | 89                      |
+--------------------+----------------------+-------------------------+
| Regular Leaded     | 86                   | 88                      |
+--------------------+----------------------+-------------------------+
| Regular, Unleaded  | 85                   | 87                      |
| (alone)            |                      |                         |
+--------------------+----------------------+-------------------------+
| Economy            | \--                  | 86                      |
+--------------------+----------------------+-------------------------+

(Table Amended 1997)

**3.4. Aviation Turbine Fuels** []{#__RefHeading___Toc48655138 .anchor}

> **3.4.1.** **Labeling of Grade Required.** \-- Aviation turbine fuels
> shall be identified by Jet A, Jet A‑1, or Jet B.
>
> **3.4.2. NFPA Labeling Requirements also Apply.** \-- Each dispenser
> or airport fuel truck dispensing aviation turbine fuels shall be
> labeled in accordance with the most recent edition of National Fire
> Protection Association NFPA 407, \"Standard for Aircraft Fuel
> Servicing.\" NFPA 407, 1990 Edition: Section 2‑3.18 Product
> Identification Signs. Each aircraft fuel servicing vehicle shall have
> a sign on each side and the rear to indicate the product. The sign
> shall have letters at least 3 inches (75 mm) high of color sharply
> contrasting with its background for visibility. It shall show the word
> \"FLAMMABLE\" and the name of the product carried, such as \"JET A,\"
> \"JET B,\" \"GASOLINE,\" or \"AVGAS.\" (NOTE: Refer to the most recent
> edition.)

**3.5. Aviation Gasoline**[]{#AviationGasoline .anchor}

> **3.5.1.** **Labeling of Grade Required.** \-- Aviation gasoline shall
> be identified by Grade 80, Grade 100, or Grade 100LL.
>
> **3.5.2. NFPA Labeling Requirements also Apply.** \-- Each dispenser
> or airport fuel truck dispensing aviation gasoline shall be labeled in
> accordance with the most recent edition of National Fire Protection
> Association (NFPA) 407, \"Standard for Aircraft Fuel Servicing.\"
>
> NFPA 407, 1990 Edition: Section 2‑3.18 Product Identification Signs.
> Each aircraft fuel servicing vehicle shall have a sign on each side
> and the rear to indicate the product. The sign shall have letters at
> least 3 inches (75 mm) high of color sharply contrasting with its
> background for visibility. It shall show the word \"FLAMMABLE\" and
> the name of the product carried, such as \"JET A,\" \"JET B,\"
> \"GASOLINE,\" or \"AVGAS.\" (NOTE: Refer to the most recent edition.)

**3.6. Fuel Oils** []{#__RefHeading___Toc48655139 .anchor}

> **3.6.1. Labeling of Grade Required.** \-- Fuel Oil shall be
> identified by the grades of No. 1, No. 2, No. 4 (Light), No. 4, No. 5
> (Light), No. 5 (Heavy), or No. 6.

**3.7. Kerosene (Kerosine)** []{#__RefHeading___Toc48655140 .anchor}

> **3.7.1. Labeling of Grade Required.** \-- Kerosene shall be
> identified by the grades No. 1-K or No. 2-K.
>
> **3.7.2. Additional Labeling Requirements.** \-- Each retail dispenser
> of kerosene shall be labeled as 1-K Kerosene or 2-K. In addition, No.
> 2-K dispensers shall display the following legend:
>
> \"Warning - Not Suitable For Use In Unvented Heaters Requiring No.
> 1-K.\"
>
> The lettering of this legend shall not be less than 12 mm 1/16 in) in
> height by 1.5 mm (1/16 in) stroke; block style letters and the color
> of lettering shall be in definite contrast to the background color to
> which it is applied.

**3.8. Fuel Ethanol** []{#__RefHeading___Toc48655141 .anchor}

> **3.8.1. How to Identify Fuel Ethanol.** \-- Fuel ethanol shall be
> identified by the capital letter E followed by the numerical value
> volume percentage. (Example: E85)
>
> **3.8.2. Retail Dispenser Labeling.** \-- Each retail dispenser of
> fuel ethanol shall be labeled with the capital letter E followed by
> the numerical value volume percent denatured ethanol and ending with
> the word \"ethanol.\" (Example: E85 Ethanol)
>
> **3.8.3. Additional Labeling Requirements.** \-- Fuel ethanol shall be
> labeled with its automotive fuel rating in accordance with 16 CFR Part
> 306.

**3.9. Fuel Methanol** []{#__RefHeading___Toc48655142 .anchor}

> **3.9.1. How Fuel Methanol is to be Identified.** \-- Fuel methanol
> shall be identified by the capital letter M followed by the numerical
> value volume percentage of methanol. (Example: M85)
>
> **3.9.2. Retail Dispenser Labeling.** \-- Each retail dispenser of
> fuel methanol shall be labeled by the capital letter M followed by the
> numerical value volume percent and ending with the word \"methanol.\"
> (Example: M85 Methanol)
>
> **3.9.3. Additional Labeling Requirements.** \-- Fuel methanol shall
> be labeled with its automotive fuel rating in accordance with 16 CFR
> Part 306.

**3.10. Liquefied Petroleum (LP) Gas** []{#__RefHeading___Toc48655143
.anchor}

> **3.10.1. How LPG is to be Identified.** \-- Liquefied petroleum gases
> shall be identified by grades Commercial Propane, Commercial Butane,
> Commercial PB Mixtures or Special-Duty Propane (HD5).
>
> **3.10.2. Retail Dispenser Labeling.** \-- Each retail dispenser of
> liquefied petroleum gases shall be labeled as \"Commercial Propane,\"
> \"Commercial Butane,\" \"Commercial PB Mixtures,\" or \"Special-Duty
> Propane (HD5).\"
>
> **3.10.3. Additional Labeling Requirements.** \-- Liquefied petroleum
> gas shall be labeled with its automotive fuel rating in accordance
> with 16 CFR Part 306.
>
> **3.10.4.** NFPA Labeling Requirements also apply. (Refer to the most
> recent edition of NFPA 58.)

**3.11. Compressed Natural Gas** []{#__RefHeading___Toc48655144 .anchor}

> **3.11.1. How Compressed Natural Gas is to be Identified.** \-- For
> the purposes of this regulation, compressed natural gas shall be
> identified by the term \"Compressed Natural Gas\" or \"CNG.\"
>
> **3.11.2.** **Retail Sales of Compressed Natural Gas Sold as a Vehicle
> Fuel**
>
> **3.11.2.1. Method of Retail Sale.** \-- All compressed natural gas
> kept, offered, or exposed for sale or sold at retail as a vehicle fuel
> shall be in terms of the gasoline liter equivalent (GLE) or gasoline
> gallon equivalent (GGE).
>
> **3.11.2.2. Retail Dispenser Labeling**
>
> **3.11.2.2.1. Identification of Product.** \-- Each retail dispenser
> of compressed natural gas shall be labeled as \"Compressed Natural
> Gas.\"
>
> **3.11.2.2.2. Conversion Factor.** \-- All retail compressed natural
> gas dispensers shall be labeled with the conversion factor in terms of
> kilograms or pounds. The label shall be permanently and conspicuously
> displayed on the face of the dispenser and shall have either the
> statement \"1 Gasoline Liter Equivalent (GLE) is equal to 0.678 kg of
> Natural Gas\" or \"1 Gasoline Gallon Equivalent (GGE) is equal to
> 5.660 lb of Natural Gas\" consistent with the method of sale used.
>
> **3.11.2.2.3. Pressure.** \-- CNG is dispensed into vehicle fuel
> containers with working pressures of 16 574 kPa, 20 684 kPa, or 24 821
> kPa. The dispenser shall be labeled 16 574 kPa, 20 684 kPa, or
> 24 821 kPa corresponding to the pressure of the CNG dispensed by each
> fueling hose.
>
> **3.11.2.2.4. NFPA Labeling.** \-- NFPA Labeling requirements also
> apply. (Refer to NFPA 52.)
>
> **3.11.3. Nozzle Requirements for CNG.** \-- CNG fueling nozzles shall
> comply with ANSI/AGA/CGA NGV 1.

**3.12. Liquefied Natural Gas** []{#__RefHeading___Toc48655145 .anchor}

> **3.12.1. How Liquefied Natural Gas is to be Identified.** \-- For the
> purposes of this regulation, liquefied natural gas shall be identified
> by the term \"Liquefied Natural Gas\" or \"LNG.\"
>
> **3.12.2. Labeling of Retail Dispensers of Liquefied Natural Gas Sold
> as a Vehicle Fuel**
>
> **3.12.2.1. Identification of Product.** \-- Each retail dispenser of
> liquefied natural gas shall be labeled as \"Liquefied Natural Gas.\"
>
> **3.12.2.2. Automotive Fuel Rating.** \-- LNG automotive fuel shall be
> labeled with its automotive fuel rating in accordance with 16 CFR Part
> 306.
>
> **3.12.2.3. NFPA Labeling.** \-- NFPA Labeling requirements also
> apply. (Refer to NFPA 57.)

**Section 4. Retail Storage Tanks**[]{#__RefHeading___Toc48655146
.anchor}

**4.1. Water in Gasoline-Alcohol Blends, Aviation Gas, and Aviation
Turbine Fuel** []{#__RefHeading___Toc48655147 .anchor}**.** \-- No water
phase greater than 6 mm (1/4 in) as determined by an appropriate
detection paste, is allowed to accumulate in any tank utilized in the
storage of gasoline-alcohol blend, aviation gasoline, and aviation
turbine fuel.

**4.2. Water in Gasoline, Diesel, Gasoline-Ether, and Other Fuels**
[]{#__RefHeading___Toc48655148 .anchor}**.** \-- Water shall not exceed
50 mm (2 in) in depth when measured with water indicating paste in any
tank utilized in the storage of biodiesel, diesel, gasoline,
gasoline-ether blends, and kerosene sold at retail except as required in
§ 4.1.

**4.3. Product Storage Identification** []{#__RefHeading___Toc48655149
.anchor}

> **4.3.1. Fill Connection Labeling.** \-- The fill connection for any
> petroleum product storage tank or vessel supplying engine-fuel devices
> shall be permanently, plainly, and visibly marked as to the product
> contained.
>
> **4.3.2. Declaration of Meaning of Color Code.** \-- When the fill
> connection device is marked by means of a color code, the color code
> shall be conspicuously displayed at the place of business.

**4.4. Volume of Product Information** []{#__RefHeading___Toc48655150
.anchor}**.** \-- Each retail location shall maintain on file a
calibration chart or other means of determining the volume of each
regulated product in each storage tank and the total capacity of such
storage tank(s). This information shall be supplied immediately to the
Director.

#### 

#### Section 5. Condemned Product

**5.1. Stop-Sale Order at Retail** []{#__RefHeading___Toc48655152
.anchor}**.** \-- A stop-sale order may be issued to retail
establishment dealers for fuels failing to meet specifications or when a
condition exists that causes product degradation. A release from a
stop-sale order will be awarded only after final disposition has been
agreed upon by the Director. Confirmation of disposition shall be
submitted in writing on form(s) provided by the Director and contain an
explanation for the fuel's failure to meet specifications. Upon
discovery of fuels failing to meet specifications, meter readings and
physical inventory shall be taken and reported in confirmation for
disposition. Specific variations or exemptions may be made for fuels
designed for special equipment or services and for which it can be
demonstrated that the distribution will be restricted to those uses.

**5.2. Stop-Sale Order at Terminal or Bulk Plant Facility**
[]{#__RefHeading___Toc48655153 .anchor}**.** \-- A stop-sale order may
be issued when products maintained at terminals or bulk plant facilities
fail to meet specifications or when a condition exists that may cause
product degradation. The terminal or bulk storage plant shall
immediately notify all customers that received those product(s) and make
any arrangements necessary to replace or adjust to specifications those
product(s). A release from a stop-sale order will be awarded only after
final disposition has been agreed upon by the Director. Confirmation of
disposition of products shall be made available in writing to the
Director. Specific variations or exemptions may be made for fuels used
for blending purposes or designed for special equipment or services and
for which it can be demonstrated that the distribution will be
restricted to those uses.

**Section 6. Product Registration**[]{#__RefHeading___Toc48655154
.anchor}

**6.1. Engine Fuels Designed for Special Use**
[]{#__RefHeading___Toc48655155 .anchor}**.** \-- All engine fuels
designed for special use that do not meet ASTM specifications or
standards addressed in Section 2 shall be registered with the Director
on forms prescribed by the Director 30 days prior to when the registrant
wishes to engage in sales. The registration form shall include all of
the following information:

> **6.1.1.** **Identity** \-- Business name and address(es).
>
> **6.1.2.** **Address** \-- Mailing address if different than business
> address.
>
> **6.1.3.** **Business Type** \-- Type of ownership of the distributor
> or retail dealer, such as an individual, partnership, association,
> trust, corporation, or any other legal entity or combination thereof.
>
> **6.1.4.** **Signature** \-- An authorized signature, title, and date
> for each registration.
>
> **6.1.5.** **Product Description** \-- Product brand name and product
> description.
>
> **6.1.6.** **Product Specification** \-- A product specification sheet
> shall be attached.

**6.2. Renewal** \-- []{#__RefHeading___Toc48655156 .anchor}Registration
is subject to annual renewal.

**6.3. Re-registration** \-- []{#__RefHeading___Toc48655157
.anchor}Re-registration is required 30 days prior to any changes in
Section 6.1.

**6.4. Authority to Deny Registration** \--
[]{#__RefHeading___Toc48655158 .anchor}The Director may decline to
register any product that actually or by implication would deceive or
tend to deceive a purchaser as to the identity or the quality of the
engine fuel.

**6.5.** []{#__RefHeading___Toc48655159 .anchor}**Transferability** \--
The registration is not transferable.

**Section 7. Test Methods and Reproducibility
Limits**[]{#__RefHeading___Toc48655160 .anchor}

**7.1.**[]{#__RefHeading___Toc48655161 .anchor} **ASTM Standard Test
Methods \--** ASTM Standard Test Methods referenced for use within the
applicable Standard Specification shall be used to determine the
specification values for enforcement purposes.

> **7.1.1. Premium Diesel \--** The following test methods shall be used
> to determine compliance with the premium diesel parameters:

(a) Cetane Number \-- ASTM D 613

(b) Low Temperature Operability \-- ASTM D 4539 or ASTM D 2500
    (according to marketing claim)

(c) Thermal Stability \-- ASTM D 6468 (180 minutes, 150 °C)

(d) Lubricity \-- ASTM D 6079

(Amended 2003)

**7.2. Reproducibility Limits** []{#__RefHeading___Toc48655162 .anchor}

> **7.2.1. AKI Limits.** \-- When determining the antiknock index (AKI)
> acceptance or rejection of a gasoline sample, the AKI reproducibility
> limits as outlined in ASTM D 4814 Appendix X1 shall be acknowledged
> for enforcement purposes.
>
> **7.2.2.** **Reproducibility.** \-- The reproducibility limits of the
> ASTM standard test method used for each test performed shall be
> acknowledged for enforcement purposes, except as indicated in § 7.2.1.
>
> **7.2.3. Dispute Resolution.** \-- In the event of a dispute over a
> reported test value, the guidelines presented in the most recent
> version of ASTM D 3244, \"Standard Practice for Utilization of Test
> Data to Determine Conformance with Specifications,\" shall be used to
> determine the acceptance or rejection of the sample.
>
> **THIS PAGE WAS INTENTIONALLY LEFT BLANK.**