Arizona Service of Process in Paternity Action is a way for the Arizona Department of Economic Security (DES) to officially notify the non-custodial parent of a child of any action taken against them regarding the establishment of paternity. The main types of Arizona Service of Process in Paternity Action are: 1. Personal Service — Personal service is when a process server physically delivers papers to the individual at their home, place of work, or other location. 2. Substituted Service — Substituted service is when a process server delivers the papers to a third party, such as an adult family member, who then notifies the individual. 3. Constructive Service — Constructive service is when a process server posts a copy of the papers at the individual’s home or place of work and mails a copy to their home or place of work. All of these methods are used to ensure that the non-custodial parent is properly notified of any legal action taken against them regarding paternity.