Conflict of interest.

A measure voted upon is not invalid by reason of conflict of interest in an officer of a city, unless the vote of the officer was decisive to passage of the measure. If a specific majority or unanimous vote of a municipal body is required by statute, the majority or vote must be computed on the basis of the number of officers not disqualified by reason of conflict of interest. However, a majority of all members is required for a quorum. For the purposes of this section , the statement of an officer that the officer declines to vote by reason of conflict of interest is conclusive and must be entered of record. [C71, 73, §368A.25; C75, 77, 79, 81, §362.6 ]