HNC stand for "Higher National Certificate"
give the right, enable, allow, permit, warrant, sanction
The parent award sole custody of the child(ren) is the only person who can make decisions for said child(ren) - legal, educational, medical, etc.
Legal residency.
The N and C are bonded by triple bonds so essentially-- it would look like this H :N:::C and between the H and C there would be 2 dots