Utah Code Ann. § 59-2-202
(1)
(a) A person, or an officer or agent of that person, owning or operating property described in Subsection (1)(b) shall, on or before March 1 of each year, file with the commission a statement:
(iii) containing the number of miles of taxable tangible personal property in each county:
(b) Subsection (1)(a) applies to:
(i) the following property located in the state:
(ii) the following property located in more than one county in the state:
(c)
(ii) The commission shall grant a person, or an officer or agent of that person, an extension for filing the statement under Subsection (1)(a) for a time period not exceeding 15 days if:
(2) The commission shall assess and list the property described in Subsection (1)(b) using the best information obtainable by the commission if a person, or an officer or agent of that person, fails to file the statement required under Subsection (1)(a) on or before the later of:
(3)
(a) Except as provided in Subsection (3)(c), the commission shall assess a person a penalty as provided in Subsection (3)(b), if the person, or an officer or agent of that person, fails to file:
(i) the statement required under Subsection (1)(a) on or before the later of:
(ii) any other information the commission determines to be necessary to:
(b) The penalty described in Subsection (3)(a) is an amount equal to the greater of:
(c)