If a substitute in a municipal assembly has been appointed as an ordinary member, been elected in another constituency following a re-election, or resigned as a substitute for some other reason, the county administrative board shall, at the request of the chair of the assembly, make new calculations and appoint one further substitute for each member that is affected. In cases where even after a substitute has resigned, the number of substitutes amounts to at least the number that the assembly determined, a new substitute shall only be appointed if the member would otherwise have no substitutes appointed for them.

The other candidate who would have been a substitute for a resigning member shall be substitute for another member who is appointed in the place of a member who has resigned.

Section 16 shall apply when making the calculation. No substitute shall be appointed if it is not possible to appoint a substitute under the first paragraph.