§ 214A.2 — Standards and classifications

Iowa § 214A.2

• Jurisdiction: Iowa
• Title V: AGRICULTURE
• Ch. 214A: MOTOR FUEL

Text

1. a. The department shall adopt rules establishing departmental standards relating to
motor fuels and motor fuel components.
b. Intheinterestofuniformity,thedepartmentshalladoptbyreferenceinpartorinwhole,
as some of its departmental standards described in paragraph “a”, applicable specifications
adoptedbyASTMinternationalandapplicablerequirementsestablishedbytheUnitedStates
environmental protection agency.
2. Octane number shall conform to the average of values obtained from the ASTM
international D2699 research method and the ASTM international D2700 motor method.
a. Octane number for regular grade unleaded gasoline shall follow the specifications of
ASTM international but shall not be less than eighty-seven.
b. Octane number for premium grade unleaded gasoline shall follow the specifications of
ASTM international but shall not be less than ninety-one.
3. a. For motor fuel advertised for sale or sold as gasoline by a dealer, the motor fuel
must meet requirements for that type of motor fuel and its additives established by the United
States environmental protection agency including as provided under 42 U.S.C. §7545.
b. If the motor fuel is advertised for sale or sold as ethanol blended gasoline, the motor
fuel must meet departmental standards including as follows:
(1) Ethanol must be an agriculturally derived ethyl alcohol that meets departmental
standards based in part or in whole on ASTM international specification D4806 for denatured
fuel ethanol for blending with gasoline for use as automotive spark-ignition engine fuel, or a
successor ASTM international specification, established by rule.
(2) Gasoline blended with ethanol must meet departmental standards based in part or
in whole on ASTM international specification D4814, or a successor ASTM international
specification, established by rule.
(3) (a) For ethanol blended gasoline, at least nine percent by volume must be fuel grade
ethanol.
(b) For the period beginning on September 16 and ending on May 31 of each year, the
state grants a waiver of one pound per square inch from the ASTM international D4814
specification for Reid vapor pressure, or a successor ASTM international specification,
established by rule.
(4) For standard ethanol blended gasoline, it must be ethanol blended gasoline classified
as any of the following:
5 MOTOR FUEL, §214A.2
(a) From E-9 up to but not higher than E-15, if the ethanol blended gasoline meets the
departmental standards for that classification as otherwise provided in this paragraph “b”.
(b) Higher than E-15 but not E-85 gasoline, if the classification is authorized by the
department pursuant to approval for the use of that classification of ethanol blended gasoline
in this state by the United States environmental protection agency, by granting a waiver or
the adoption of regulations.
(5) E-85 gasoline must be an agriculturally derived ethyl alcohol that meets departmental
standards based in part or in whole on ASTM international specification D5798, described as
a fuel blend for use in ground vehicles with automotive spark-ignition engines, or a successor
ASTM international specification, established by rule.
c. If the motor fuel is advertised for sale or sold as biobutanol blended gasoline, the motor
fuel must meet departmental standards as follows:
(1) Biobutanol must be an agriculturally derived isobutyl or n-butyl alcohol that meets
ASTM international specification D7862 for butanol for blending with gasoline for use as
automotive spark-ignition engine fuel, or a successor ASTM international specification,
established by rule.
(2) Gasoline blended with biobutanol must meet departmental standards based in part
or in whole on ASTM international specification D4814, or a successor ASTM international
specification, established by rule.
4. a. For motor fuel advertised for sale or sold as diesel fuel by a dealer, the motor fuel
must meet requirements for that type of motor fuel and its additives established by the United
States environmental protection agency including as provided under 42 U.S.C. §7545.
b. If the motor fuel is advertised for sale or sold as biodiesel or biodiesel blended fuel,
the motor fuel must meet departmental standards based in part or in whole on specifications
adopted by ASTM international for biodiesel or biodiesel blended fuel, to every extent
applicable, as determined by the department, subject to the following:
(1) Biodiesel must meet departmental standards based in whole or in part on ASTM
international specification D6751, or a successor ASTM international specification,
established by rule. The specification shall apply to biodiesel before it leaves its place of
manufacture.
(2) At least five percent of biodiesel blended fuel by volume must be biodiesel.
(3) The biodiesel may be blended with diesel fuel whose sulfur, aromatic, lubricity, and
cetane levels do not comply with ASTM international specification D975 grades 1-D or 2-D,
low sulfur 1-D or 2-D, or ultra-low sulfur grades 1-D or 2-D, provided that the finished
biodiesel blended fuel meets departmental standards as required in subparagraph (1).
(4) Biodiesel blended fuel classified as B-6 or higher but not higher than B-20 must meet
departmentalstandardsbasedinwholeorinpartonASTMinternationalspecificationD7467,
or a successor ASTM international specification, established by rule.
(5) (a) Biodiesel blended fuel classified as higher than B-20 must conform to standards
adopted by the department.
(b) The rules adopted by the department of agriculture and land stewardship establishing
standards for biodiesel blended fuel classified as higher than B-20 shall take effect not
earlier than sixty days after the date of filing in accordance with section 17A.5, subsection
2, paragraph “a”. The department of agriculture and land stewardship shall notify the
legislative services agency, the governor, the department of natural resources, and the
department of revenue of the effective date of the rules at least thirty days prior to the
effective date of the rules.
c. (1) If the motor fuel is advertised for sale or sold as renewable diesel or renewable
diesel blended fuel, the motor fuel must meet departmental standards based in part or in
whole on specifications adopted by ASTM international for renewable diesel or renewable
dieselblendedmotorfuel,toeveryextentapplicable,asdeterminedbythedepartmentsubject
to subparagraph (2).
(2) Renewable diesel must at least meet departmental standards based in whole or in part
on ASTM international specification D975, or a successor ASTM international specification,
established by rule. The specification shall apply to renewable diesel before it leaves its place
of manufacture.
§214A.2, MOTOR FUEL 6
5. Motor fuel shall be classified as follows:
a. (1) Ethanol shall be classified as E-100.
(2) Ethanol blended gasoline formulated with a percentage of between sixty-eight and
eighty-three percent by volume of ethanol shall be classified as E-85.
(3) Ethanol blended gasoline, other than ethanol blended gasoline classified as E-85, shall
be classified as E-xx where “xx” is the volume percent of ethanol in the ethanol blended
gasoline.
b. (1) Biobutanol shall be classified as Bu-100.
(2) Biobutanol blended gasoline shall be classified as Bu-xx where “xx” is the volume
percent of biobutanol in the biobutanol blended gasoline.
c. (1) Biodiesel shall be classified as B-100.
(2) Biodiesel blended fuel shall be classified as B-xx where “xx” is the volume percent of
biodiesel.
d. (1) Renewable diesel shall be classified RD-100.
(2) Renewable diesel blended fuel shall be classified RD-xx where “xx” is the volume
percent of renewable diesel.
6. Motor fuel shall not contain more than trace amounts of MTBE, as provided in section
214A.18.

Legislative History

[C31, 35, §5093-d2; C39, §5095.02; C46, 50, 54, 58, 62, 66, 71, §323.2; C73, 75, 77, 79, 81, §214A.2; 82 Acts, ch 1131, §1, ch 1170, §1]