1. (1) On or before the fifteenth day of April in each year, an authorized officer of every railroad company whose road is so far completed and in operation as to run locomotive engines, with freight or passenger cars thereon, shall furnish to the state tax commission a report as of the first day of January, duly subscribed and sworn to by an authorized officer before some officer authorized to administer oaths, setting out in detail the total length of their road so far as completed, including branch or leased roads, the entire length in this state, and the length of double or sidetracks, with the length of such road, double or sidetracks, in each county, municipal township, city or incorporated town, special road district, library district, school districts which levy taxes for library purposes pursuant to section 137.030 , hospital districts organized under the hospital district law, nursing home districts organized under the nursing home district law, ambulance districts, metropolitan zoological park and museum district established pursuant to section 184.350 , public water supply, fire protection and sewer districts or subdivisions, except other school districts, through or in which it is located in this state; all the other distributable property of the railroad and the true value in money thereof, and such information concerning itself and all of its property, wherever situated, as the state tax commission may reasonably require for the purpose of determining the true value in money of the distributable property of the railroad company in this state and for apportioning the valuation for assessment of such property among the various counties;
(2) The term "distributable property" of a railroad company shall include all property, real and tangible personal, owned, used, leased or otherwise controlled by a railroad company which is used directly in the movement of passengers and freight, but not property used as a collateral facility nor property held for purposes other than those of a railroad. Such distributable property includes, but is not limited to:
(a) Rail, ballast, ties, switches, and switching equipment;
(b) Roadbed, superstructure, bridges, trestles, and culverts;
(c) Railroad right-of-way, leased railroad lines, depots, water tanks and turntables;
(d) Rolling stock, engines, and handcars;
(e) Any other property used directly in the movement of passengers or freight;
(f) Communication equipment used for control of the movement of passengers and freight;
(3) The term "local property" of a railroad company shall include all real and tangible personal property owned, used, leased, or otherwise controlled by any railroad company and not used directly in the movement of passengers and freight, not defined in subdivision (2) of this subsection as distributable property. Such property includes, but is not limited to:
(a) Construction work in progress;
(b) Materials and supplies;
(c) Motor vehicles;
(d) Office furniture, office equipment, and office fixtures;
(e) Office buildings and warehouses;
(f) Roundhouses and workshops;
(g) Land and buildings not assessed as distributable property;
(h) Communication equipment not used for control of the movement of passengers and freight.
2. All annual reports, and any addenda thereto, filed with the commission shall be considered proprietary documents and shall be accessible only to the commission and its staff for internal use only. Any person who violates the confidentiality requirement of this subsection commits a class A misdemeanor and may be dismissed from their position of employment by the state tax commission without possibility of reinstatement.
3. Upon written request by an authorized officer of any railroad company operating in this state, the state tax commission may, for good cause shown, enlarge or extend the time for filing an annual report and any addenda thereto. Such written request must be filed with the state tax commission no later than April first.
4. The report required by subsection 1 of this section shall be made on forms as prescribed by the state tax commission, and such statements and schedules as are contained in the prescribed report shall be completed in conformity to such instructions and rules as may be prescribed by the state tax commission.
5. If any railroad company refuses or fails to make and return the report required by this chapter within the time prescribed and without an extension of time, the state tax commission shall increase by four percent the total assessed valuation of the distributable property of any such company unless the state tax commission, for good cause shown, waives this penalty.
6. Any reports required by this chapter or chapter 153 delivered by United States mail to the proper official or officer designated shall be deemed to be received as of the postmark date stamped on the envelope or other cover in which such report is mailed. In the event any report is sent by registered or certified mail, the date of registration or certification shall be deemed the postmark date. No penalty shall be imposed under this chapter or chapter 153 on any company whose reports are delivered by United States mail, if the postmark date stamped on the envelope or other cover containing such reports falls within the prescribed period or on or before the prescribed date, including any extension granted for making the report.