72 Pa. Stat. § 5020-309
In counties of the fourth, fifth, sixth, seventh and eighth classes, county commissioners may appoint interpreters to act as such for assessors, or, in townships of the first class, for assessors, assistant township assessors or assistant triennial assessors.
Such interpreters may be assigned by the county commissioners to assist any assessor or assistant assessor, and shall accompany him to his district at and for such time as the commissioners may designate. Such interpreters shall, on behalf of such assessor or assistant assessor, and under his direction and control, administer oaths, and interrogate any taxable concerning name, occupation, residence, and property of said taxable.
The number of said interpreters, so appointed, shall be within the discretion of the county commissioners, provided not more than one interpreter be employed to a district, and in no event shall any interpreter be employed for a greater length of time than ten days in any one district.
The compensation for any interpreter appointed under the provisions of this act shall be two dollars and fifty cents per day, and traveling expenses, payable, upon warrant of the county commissioners, out of the county treasury.
72 P.S. § 5020-309