Supreme Court held the seven-day work readiness deadline is a substantive right not subject to extension under procedural law.

The Supreme Court reversed the lower court's dismissal of the employee's claim regarding a missed seven-day deadline to report work readiness. The employee argued the delay was caused by his lawyer failing to inform him of a reinstatement judgment, while the employer contended the delay was attributable to the employee. The court ruled that the deadline is a substantive right governed by material law, meaning procedural extensions do not apply, but the employee can still prove the delay resulted from independent causes.