Supreme Court rules unconstitutional overtime pay regulations do not apply retroactively to pending claims.

The Supreme Court resolved a legal question regarding whether unconstitutional overtime regulations apply retroactively to claims filed before their invalidation. Plaintiffs argued that regulations deemed unconstitutional by the Constitutional Tribunal should not govern their back-pay claims, while the lower court had partially granted relief from the date of the Tribunal's ruling. The Court held that applying the invalid regulations retroactively would violate the principle of legal certainty and the authority of the Constitutional Tribunal, thus excluding them from the calculation of wages for the period prior to the ruling's entry into force.