19 GCA § 31103: Wage Assignment Generally.

No assignment of, or order for, wages or salary shall be valid unless made in writing by the person by whom the said the said wages or salary are earned and no assignment of, or order for, wages or salary made by a married person shall be valid unless the written consent of the husband or wife of the person making such assignment or order is attached to such assignment or order; and no assignment or order for wages or salary of a minor shall be valid unless the written consent of a parent or the guardian of such minor is attached to such order or assignment. No assignment of, or order for, wages or salary shall be valid unless at the time of the making thereof, such wages or salary have been earned, except for the necessities of life and then only to the person or persons furnishing such necessities of life directly and then only for the amount needed to furnish such necessities. Any power of attorney to assign or collect wages or salary shall be revocable at any time by the maker thereof.