As used in this chapter “transmitting utility” has the same meaning as defined in the Uniform Commercial Code, section 554.9102, subsection 1 . Security interests filed pursuant to this chapter prior to January 1, 1975, which have not been terminated, are deemed to be filed in accordance with section 554.9501, subsection 2 . [C66, 71, 73, 75, 77, 79, 81, §555.1 ] C93, §554B.1 2000 Acts, ch 1149, §175, 187