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Utah Administrative Code (Current through November 1, 2019) |
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R70. Agriculture and Food, Regulatory Services |
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R70-940. Standards and Testing of Motor Fuel |
| R70-940-1. Authority and Scope |
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(1) Promulgated and enforced by authorities outlined in Utah Code, Title 4 Chapter 33 Motor Fuel Inspection Act. (2) Scope: This rule establishes motor fuel performance specifications and monitoring standards to ensure consumer confidence in fuel quality. |
| R70-940-2. Standards |
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(1) Gasoline and gasoline-ethanol blends shall have a minimum Anti-Knock Index (AKI) of 85. (2) The Department adopts by reference motor fuel regulations outlined in the 2017 version of NIST Handbook 130; "Uniform Laws and Regulations in the area of legal metrology and engine fuel quality", Chapter IV, Part G, "Uniform Engine Fuels and Automotive Lubricants Regulation" with the following exceptions: (a) Section 2.1.1, the Department adopts ASTM specification D4814-17, "Standard Specification for Automotive Spark-Ignition Engine Fuel". (b) Section 2.1.2, Gasoline-Ethanol blends shall not exceed ASTM D4814-17 Table 1 vapor pressure limits by more than: (i) 1.0 psi, when gasoline-ethanol blends contain nine to ten volume percent ethanol from June 1st through Sept 15th. (ii) 1.0 psi, when gasoline-ethanol blends contain one up to and including fifteen volume percent ethanol for volatility classes A, B, C, and D from September 16th through May 31st. (iii) 0.5 psi, for gasoline-ethanol blends containing one up to and including fifteen volume percent ethanol for volatility class E from September 16th through May 31st. (iv) Vapor pressure exceptions will remain in effect until ASTM incorporates changes to the vapor pressure maximums for gasoline-ethanol blends. (c) Section 2.2, the Department adopts by reference ASTM D975-17 "Standard Specification for Diesel Fuel Oils". (d) Section 4.4.2, If the standard color code is adopted, no color key posting is required |
| R70-940-3. Storage Tank Preparation |
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(1) Retail storage tanks and equipment must be cleaned and purged prior to first introduction of fuel meant for sale or, (2) Purged when switching from one type or grade of fuel to another. (3) Access to the bottom of a retail storage tank shall remain unobstructed such that any phase separated water content may be measured or detected from the fill connection. |
| R70-940-4. Certification, Documentation, and Labeling |
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(1) Certification and documentation of motor fuels shall be made in accordance with 16CFR Part 306, "Automotive Fuel Ratings, Certification, and Posting". (2) Labeling shall be regulated in accordance with requirements in the 2017 version of NIST Handbook 130; "Uniform Laws and Regulations in the area of legal metrology and engine fuel quality", Chapter IV, Part G, "Uniform Engine Fuels and Automotive Lubricants Regulation". |