What Does it Mean?
A prohibited civil union is a civil union between two partners that is not allowed by the state of Illinois, and so can be declared invalid (annulled).
Things You Should Know
Civil unions are considered legally prohibited only when:
- two siblings, half-siblings, or adopted siblings enter a civil union
- a full or half nice/nephew and a full or half aunt/uncle enter a civil union
- one partner in a separate marriage or union enters a new civil union
- generally speaking, when two first-cousins enter a new civil union