Texas Government Code - GOV'T § 660.043. Determination of Reimbursable Mileage

(a) The number of miles traveled that are eligible for reimbursement under this subchapter may not exceed the number of miles of the most cost-effective reasonably safe route between the origin of the state employee's travel and the final duty point of the state employee. If a state employee conducts official state business at duty points between the origin of the state employee's travel and the final duty point, the most cost-effective reasonably safe route between the origin and the final duty point shall include the intermediate duty points.

(b) In determining the most cost-effective reasonably safe route for purposes of Subsection (a), a state agency may consider:

(b) For the purpose of Subsection (a), the shortest route between two points is presumed to be the most cost-effective route. A longer route may be considered the most cost-effective route only if:

(c) The number of miles traveled that are eligible for reimbursement under this subchapter may be determined by an employee's vehicle odometer reading or by a readily available electronic mapping service.

(d) If the number of miles between points is not shown in the guide, the mileage incurred while traveling between those points is not reimbursable unless: