(1) A retail licensee licensed under this title to sell, offer for sale, or furnish spirituous liquor for consumption on the licensed premises, or staff of the retail licensee may not:

1. (a) sell, offer for sale, or furnish a primary spirituous liquor to a person on the licensed premises except in a quantity that does not exceed 1.5 ounces per beverage dispensed through a calibrated metered dispensing system approved by the department;
2. (b) sell, offer for sale, or furnish more than a total of 2.5 ounces of spirituous liquor per beverage;
3. (c) allow a person on the licensed premises to have more than a total of 2.5 ounces of spirituous liquor at a time; or

4. (d)

   1. (i) except as provided in Subsection (1)(d)(ii), allow a person to have more than two spirituous liquor beverages at a time; or

   2. (ii) allow a person on the premises of the following to have more than one spirituous liquor beverage at a time:

      1. (A) a full-service restaurant licensee;
      2. (B) a person operating under a full-service restaurant sublicense;
      3. (C) an on-premise banquet licensee;
      4. (D) a person operating under an on-premise banquet sublicense; or
      5. (E) a single event permittee.