The delimitation of constituencies is an important means of promoting equal voting power for all electoral systems. As single seat systems lead to one political group representing each constituency, the mechanisms for designing and reviewing boundaries are often more important than with multi-seat constituencies. Boundary delimitation and review should follow criteria to achieve a balanced and transparent distribution of seats. This is crucial if a fully majoritarian system is applied, as in draft law No. 60, but also in mixed systems where single-member constituencies tend to be larger, potentially enhancing the disproportion in the results of the majoritarian part of the system.