All petitions under this subchapter are forever barred unless filed within two years after the petitioner first knew or should have known that the system had denied the petitioner the alleged benefit, service credit, or other entitlement under chapter 88, HRS, that forms the basis for the petition. Such knowledge includes the petitioner's receipt of an informal decision from the system denying the petitioner the alleged benefit, service credit, or entitlement. The petitioner bears the burden of proving that the petitioner has complied with the imitations period.
Haw. Code R. § 6-23-25