R.I. Gen. Laws § 28-33-39
The reasonable costs of transportation to and from the office of any examiner requested by the employer or of any impartial examiner appointed as provided in § 28-33-35 shall be charged to the employer and, if paid for by the employee, he or she shall be reimbursed in full for this expenditure by his or her employer, upon presentation of a receipt or other evidence of expenditure. The reasonable cost of transportation that occurs on or after July 1, 2016, is the rate equal to the per-mile rate allowed by the Internal Revenue Service for use of a privately owned automobile for business miles driven, as from time to time amended, for a private motor vehicle or the reasonable cost incurred for transportation, from the employee's point of departure, whether from the employee's home or place of employment, and return.
R.I. Gen. Laws § 28-33-39