428.24  Public utility plants.
  The lands, buildings, machinery, and mains belonging to individuals or corporations operating waterworks, other than waterworks taxed under chapter 437B, or gasworks or pipelines, except those natural gas pipelines permitted pursuant to chapter 479, shall be listed and assessed by the department of revenue. In the making of assessments of waterworks plants, the value of any interest in the property assessed, of the municipal corporation where it is situated, shall be deducted, whether the interest is evidenced by stock, bonds, contracts, or otherwise.
[C97, §1343; C24, 27, 31, 35, 39, §6979; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §428.24; 81 Acts, ch 31, §9]
83 Acts, ch 101, §88; 98 Acts, ch 1194, §29, 40; 2003 Acts, ch 145, §286; 2013 Acts, ch 94, §6, 35, 36
Referred to in §29C.24, §423.3, §427A.1, §427B.17, §427B.26, §428.28, §437.12, §437.13, §441.73
2013 amendment takes effect May 9, 2013, and applies retroactively to property tax assessment years and replacement tax years beginning on or after January 1, 2013; 
2013 Acts, ch 94, §35, 36