ENGLAND, SCOTLAND, WALES AND NORTHERN IRELAND
1. Two people are within prohibited degrees of relationship if one falls within the list below in relation to the other:
· Adoptive child
· Adoptive parent
· Child
· Former adoptive child
· Former adoptive parent
· Grandparent
· Grandchild
· Parent
· Parent's sibling
· Sibling
· Sibling's child
"sibling" means a brother, sister, half-brother or half-sister.
2. Two people are within prohibited degrees of relationship if one of them falls within the list below in relation to the other, unless:
· both of them have reached 21 at the time when they register as civil partners of each other, and
· the younger has not at any time before reaching 18 been a child of the family in relation to each other.
· Child of former civil partner
· Child of former spouse
· Former civil partner of grandparent
· Former civil partner of partner
· Former spouse of Grandparent
· Former spouse of partner
· Grandchild of former civil partner
· Grandchild of former spouse
"child of the family" in relation to another person, means a person who:
· has lived in the same household as that other person, and
· has been treated by that other person as a child of his family.