117. A claimant who undergoes the examination referred to in section 115 or 116 is entitled, in the cases and on the conditions determined by regulation of the Government, to be reimbursed for the travel and lodging expenses incurred in connection with the examination, up to the amount determined by regulation.
The person who accompanies or escorts a claimant whose physical or mental condition or age requires that he be accompanied or escorted when undergoing such an examination is entitled, in the cases and on the conditions determined by regulation of the Government, to an availability allowance and to be reimbursed for the travel and lodging expenses he incurs, up to the amount determined by regulation.