Is it allowed: Reimbursement of Fuel for Private Vehicle used in Government Transactions

Hi po inquire po sana ng guidelines ng pag-reimburse ng fuel used for personal vehicle [na ginamit for government or official transaction]?

May exemption po ba na ina-allow?

The purpose po is no available government service vehicle that time para sa pagtransport ng mga materials to be used sa repairs sa other office building.

Thank you po in advance.