The purpose of the State Travel Manual is to help employees understand and apply the State’s travel rules and regulations and to provide instructions regarding reimbursement for expenses while in Travel Status. The Office of the State Comptroller (OSC) sets rules and regulations for reimbursement of expenses incurred while traveling on official State business. As an employee traveling on behalf of Stony Brook University, you are performing a valuable service. At the same time, it is your responsibility to spend this travel money as efficiently and economically as possible. The basic rule to remember is that when an employee travels on official State business, only actual, necessary and reasonable business expenses will be reimbursed, or should be incurred.