State law does not require a receipt for a reimbursement of travel by bus, subway, other mode of mass transit, taxi, limousine, or network transportation driver; however, supporting documentation must itemize the date and the fare charged for each trip. Incidental expenses above $75 must be supported by itemized receipts for both local and state appropriated funds.  

Receipts are not required for incidental expenses unless an individual expense exceeds $75. However, travelers should always ask for a receipt for incidental expenses and provide it as documentation with the Concur Expense Report when provided by the vendor. University guests and contractors must provide itemized receipts for all public transportation expenses. 

Sources: MAPP 04.02.01A; MAPP 04.02.01B; Textravel.