Deductions & credits

Re Publication 463, see Publication 463 (2023), Travel, Gift, and Car Expenses | Internal Revenue Service

 

It would initially appear as if Example 3 would be most on point.

 

However, and critically, my opinion is that the following sentence would have significant weight in this particular instance:

 

A series of assignments to the same location, all for short periods but that together cover a long period, may be considered an indefinite assignment.