Couples in Iowa who wish to legally separate must file for legal separation, respecting the Iowa legal code in regard to this issue. According to Iowa Legal Aid, at least one member of the couple must reside in Iowa.
The Iowa State Bar explains that the only legal grounds for dissolution of a marriage in Iowa is the breakdown of the marriage relationship. The same rules for divorces apply to all legal separations. The state is a no-fault state, meaning petitioners cannot ask for a divorce on the grounds of misconduct on the other party's behalf. There is a 90-day waiting period following the serving of separation papers.