Vacation pay is subject to a two-year statute of limitations, if the agreement is oral, and a four-year statute of limitations if the agreement/policy is in writing. Church v. Jamison (2006) 143 Cal.App.4th 1568, 1577, 50 Cal.Rptr.3d 166, 171.
An written employment handbook is the same as a written agreement (four years).
The Division of Labor Standards Enforcement will follow the above-described law.
Hope this helps.
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