When applying state statutes of limitation, federal courts use the forum state's choice of law rules, as they do for other state law issues. This can result in the application of another state's law or different states' statutes of limitation governing different claims in the same action. (See, for example, Polkampally v. Countrywide Home Loans Inc., No. 13 CV 174, , at *2-3 (D.N.J. Nov. 6, 2013).)
Both plaintiffs and defendants in federal court must, therefore, familiarize themselves with the potentially applicable state statutes of limitation. A plaintiff's failure to comply with the state statute of limitation may prevent it from vindicating its rights. A court ruling that a claim is time-barred is a dismissal on the merits, just like a ruling that the plaintiff failed to state a claim or failed to prove liability (Plaut v. Spendthrift Farm, Inc., 514 U.S. 211, 228 (1995)).
For help in determining state statutes of limitation, attorneys should consult Practical Law's Statutes of Limitation: State Q&A Tool. The tool enables users to review and compare state statutes of limitation and accrual rules for over 20 common causes of action.