Utah Administrative Code
The Utah Administrative Code is the body of all effective administrative rules as compiled and organized by the Division of Administrative Rules (see Subsection 63G-3-102(5); see also Sections 63G-3-701 and 702).
NOTE: For a list of rules that have been made effective since January 1, 2019, please see the codification segue page.
NOTE TO RULEFILING AGENCIES: Use the RTF version for submitting rule changes.
R70. Agriculture and Food, Regulatory Services.
Rule R70-940. Standards and Testing of Motor Fuel.
As in effect on January 1, 2019
Table of Contents
- R70-940-1. Authority and Scope.
- R70-940-2. Standards.
- R70-940-3. Storage Tank Preparation.
- R70-940-4. Certification, Documentation, and Labeling.
- Date of Enactment or Last Substantive Amendment
- Notice of Continuation
- Authorizing, Implemented, or Interpreted Law
(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.
(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
(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.
(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".
inspections, motor fuel
February 22, 2018
August 2, 2016
For questions regarding the content or application of rules under Title R70, please contact the promulgating agency (Agriculture and Food, Regulatory Services). A list of agencies with links to their homepages is available at http://www.utah.gov/government/agencylist.html or from http://www.rules.utah.gov/contact/agencycontacts.htm.