Ariz. Admin. Code § 3-7-751
Current through Register Vol. 30, No. 50, December 13, 2024
Section R3-7-751 - Arizona CBG RequirementsA. General fuel property and performance requirements. In addition to the other requirements of this Article and except as provided in subsection (B), all Arizona CBG shall meet the following requirements and for any fuel property not specified, shall meet the requirements in ASTM D4814. The dates in this Section are compliance dates for the owner or operator of a motor fuel dispensing site or a fleet vehicle fueling facility.1. Sulfur: 95 ppm by weight (max).2. Aromatics: 50% by volume (max).3. Olefins: 25% by volume (max).6. Maximum vapor pressure: b. November 1 - March 31: 9.0 psi.e. June 1 - September 30: 7.0 psi.f. A gasoline-ethanol blend in the CBG-covered area is subject to the 1 psi vapor pressure waiver, as described in R3-7-708(D)(2), during April only.7. Oxygen and oxygenates: a. Minimum content: i. November 1 - March 31: 10% ethanol by volume or 12.5% isobutanol by volume. If a petition under A.R.S. § 3-3493(C) is in effect: 2.7% oxygen by weight as approved by the associate director.ii. April 1 - October 31: 0% by weight (any oxygenate).b. The maximum oxygen content shall not exceed 5.8% by weight for ethanol and shall not exceed the amount allowed by EPA waivers under Section 211(f) of the Clean Air Act for other oxygenates. Additionally, the oxygen content shall comply with the requirements of A.R.S. § 3-3491 and § 3-3492.c. Arizona CBG shall not contain more than 0.3 volume percent MTBE nor more than 0.1 weight percent oxygen from all other ethers or alcohols listed in A.R.S. § 3-3491.8. Arizona CBG shall meet the Federal Complex Model VOC emissions reduction percentage May 1 through September 15: 27.5% (Federal Complex Model settings: Summer, Area Class B, Phase 2).B. Winter requirements. In addition to the other requirements of this Article, the owner or operator of a motor fuel dispensing site or a fleet vehicle fueling facility shall ensure that beginning November 1 through March 31 of each year, all Arizona CBG meets the following fuel property requirements. 1. Sulfur: 80 ppm by weight (max),2. Aromatics: 30% by volume (max),3. Olefins: 10% by volume (max),4. 90% Distillation Temp. (T90): 330° F (max),5. 50% Distillation Temp. (T50): 220° F (max),6. Vapor Pressure: 9.0 psi (max), and7. Oxygenate: a. Minimum oxygenate content - 10% ethanol by volume or 12.5% isobutanol by volume;b. Maximum oxygen content - 5.8% oxygen by weight, and shall comply with the requirements of A.R.S. § 33492; andc. Alternative minimum ethanol or isobutanol content may be used if approved by the associate director under A.R.S. § 3-3493(C).
C. Certification as Type 1 Arizona CBG or Type 2 Arizona CBG. A registered supplier shall certify Arizona CBG or AZRBOB under R3-7-752, using the test methods specified in R3-7-759. Type 1 Arizona CBG or Type 2 Arizona CBG shall be certified with the addition of 10 volume percent ethanol or an oxygen content of 2.7% by weight for other oxygenates. A PM alternative gasoline formulation shall be certified with an oxygen content of 1.8 to 2.2% by weight as outlined in subsection (I).
D. In addition to the standards in subsections (A) and (B), Type 1 Arizona CBG and Type 2 Arizona CBG shall be certified meeting the following standards: 1. Type 1 standards. For each fuel property, Type 1 Arizona CBG shall comply with the following per gallon standards, and shall be certified using the Federal Complex Model: a. VOC Emission Reduction: 27.5% (min) May 1 through September 15.b. NOx Emission Reduction: 5.5% (min) May 1 through September 15.c. NOx Emission Reduction: 0.0% (min) September 16 through October 31 and February 1 through April 30.2. Type 2 standards. For each fuel property, Type 2 Arizona CBG shall comply with the following maximum per gallon standards or a PM alternative gasoline formulation: a. Maximum per gallon standards. i. Sulfur: 40 ppm by weight (max).ii. Aromatics: 25.0% by volume (max).iii. Olefins: 6.0% by volume (max).iv. 90% distillation temperature (T90): 300 °F (max).v. 50% distillation temperature (T50): 210 °F (max).b. PM alternative gasoline formulation. The PM alternative gasoline formulation shall meet the requirements of subsections (G) through (I), and the per gallon standards in R3-7-751(A) beginning April 1 through October 31 of each year, and R3-7-751(B) beginning November 1 through March 31 of each year.
E. A registered supplier may produce Type 1 Arizona CBG from December 1 through March 31 but the registered supplier shall not distribute the Arizona CBG to a motor fuel dispensing site within the CBG-covered area before April 1. A registered supplier may produce and distribute Type 2 Arizona CBG year-round.
F. November 1 through March 31 of each year, a registered supplier shall ensure that all Arizona CBG or AZRBOB complies with Type 2 Arizona CBG requirements or the PM alternative gasoline formulation requirements.
G. Certification and use of the Predictive Model Procedures for PM alternative gasoline formulations. 1. Except as provided in subsection (I), a registered supplier shall use the PM as provided in the Predictive Model Procedures.2. A registered supplier shall certify a PM alternative gasoline formulation with the associate director on a form prescribed by, or in a format acceptable to, the associate director, of:a. The PM alternative specifications that apply to the final blend; andb. The numerical values for percent change in emissions for oxides of nitrogen and hydrocarbons determined in accordance with the Predictive Model Procedures.3. A registered supplier shall deliver the certification required under subsection (G)(2) to the associate director within 3 business days of transporting the PM alternative gasoline formulation. The registered supplier shall have a written process that is followed to verify the PM alternative gasoline formulation meets the applicable PM alternative specifications prior to transport.4. If a registered supplier notifies the associate director under subsection (G)(3) that a final blend of Arizona CBG is sold or supplied from a production or import facility as a PM alternative gasoline formulation, all final blends of Arizona CBG or AZR-BOB subsequently sold or supplied from that production or import facility are subject to the same PM alternative specifications until the registered supplier either: a. Designates a final blend at that facility as a PM alternative gasoline formulation subject to different PM alternative specifications; orb. Chooses to certify a final blend at that facility subject to a flat limit compliance option.
H. Prohibited activities regarding PM alternative gasoline formulations. A registered supplier shall not sell, offer for sale, supply, or offer to supply from the registered supplier's production or import facility Arizona CBG that is reported as a PM alternative gasoline formulation under R3-7-752 if any of the following occur: 1. The PM alternative specifications do not meet the criteria for approval in the Predictive Model Procedures, or2. The gasoline fails to conform to any PM flat limit in the PM alternative specifications. A registered supplier may not use an average compliance option in the PM alternative specifications.I. Oxygen content requirements for PM alternative gasoline formulations. A registered supplier shall ensure that from November 1 through March 31, all alternative PM gasoline formulations comply with oxygen content requirements for the CBG-covered area. Regardless of the oxygen content, a registered supplier shall certify the final alternative PM gasoline formulation using the PM with a minimum oxygen content of 1.8% by weight and a maximum oxygen content of 2.2% by weight. A registered supplier may use the CARBOB Model as a substitute for the preparation of a ethanol hand blend and use the fuel qualities calculated under the CARBOB Model for compliance and reporting purposes. J. Rounding of values shall be conducted following 40 CFR 1090.50.
Ariz. Admin. Code § R3-7-751
Adopted by final rulemaking at 23 A.A.R. 2280, effective 10/2/2017. Amended by final rulemaking at 24 A.A.R. 2666, effective 11/10/2018. Amended by final rulemaking at 29 A.A.R. 442, effective 3/5/2023.