The envelope for offices other than governor and lieutenant governor shall be endorsed substantially in the manner provided in section 50.31 , with changes necessary to indicate the particular offices, and shall be addressed as follows: To the State Commissioner of Elections. [C51, §283, 305; R60, §517, 539; C73, §645, 662; C97, §1157; S13, §1157; C24, 27, 31, 35, 39, § 871; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §50.32 ] 91 Acts, ch 129, §16 ; 2019 Acts, ch 24, §11