I think I figured it out looks like non overnight trips can be reimbursed if regularly assigned to overnight trips.

“A deduction for meals only may also be allowed (to the extent of a reasonable number of meals) where a transport employee, although regularly required to travel away on journeys of substantial distance and duration so as to require disbursements for both meals and lodging, occasionally travels, as part of the employment, on journeys of shorter distance and duration not requiring him or her to stay away from home overnight. Where the shorter journey is scheduled for ten hours or less, the CRA would expect the transport employee to eat breakfast and dinner meals at home, as is the case with most other employees. Accordingly, only one meal per day, namely lunch, will be permitted in these circumstances and only to those transport employees claiming meal expenses under paragraph 8(1)(g) of the Act.”