Iowa Const. art. IX, 1st div., § 14
A majority of the board shall constitute a quorum for the transaction of business; but no rule, regulation, or law, for the government of common schools or other educational institutions, shall pass without the concurrence of a majority of all the members of the board, which shall be expressed by the yeas and nays on the final passage. The style of all acts of the board shall be, “Be it enacted by the board of education of the state of Iowa”.*
*This provision appears to have been superseded or may be obsolete, see this codified Iowa Constitution, Art. IX, 1st Education, §15; the board of education was abolished in 1864 by 1864 Acts, ch 52, §1
Statutory provisions, see Iowa Code chapters 256 and 262