The 30-Year Review of the Performance-Weighted Formula

The Performance-Weighted Allocation Formula has a constitutionally mandated review at the third census following implementation (approximately 2057). The 20-Year Constitutional Review Commission applies a 0.5% seat-share-decline threshold test — assessing whether demographic convergence has made the performance weight unnecessary.

If convergence is sufficient, the Commission may recommend reducing the performance weight from 15% to 10% or 5%. Implementation requires a three-quarters parliamentary majority.

The sunset is not automatic expiry — it is a constitutional review trigger requiring each generation to make a conscious political choice about whether the protection remains necessary. This prevents both premature removal (before convergence is real) and permanent entrenchment (after convergence makes it distorting).