Section 15
SEC. 15. (a) The actual and necessary traveling expenses of the deputies, subordinates, and other employees of provincial officers engaged in traveling in the province on official business shall be paid from the provincial treasury when authorized by the provincial board and approved by the Treasurer of the Philippine Archipelago. The same limitation as to the amount of the expenses per day which applies to the traveling expenses, of the provincial officers shall apply to those herein authorized. (b) In applying the statutory limitation upon the amount per day which can be actually expended and reimbursed to provincial officers and their subordinates for expenses in traveling on official business for the province, the total actual traveling expenses for each quarter shall be added together and divided by the number of days of the quarter during which the officer or his subordinates has been absent on public business in the province from the capital thereof; and if the amount, per day thus calculated and averaged for the quarter docs not exceed the limitation of maximum per diem expenses hereinbefore authorized, the whole amount actually expended shall be allowed to the officer or his subordinate.