The Constitutional Court will deliver judgement on whether section 261a to c of the Births and Deaths Registration Act unfairly limits a man's right to assume his wife's surname after marriage.
The application comes from two couples: Jana Jordaan and Henry Van Der Merwe, and Jess Donnelly-Bornman and Andreas Nicolaas Bornman. Their challenge to the statute reached the apex court after oral hearings earlier this year.
At the centre of the dispute is the Act's unequal treatment of spouses.