71 Pa. Stat. § 1187.3
The committee shall have power to employ and fix the compensation of such experts, stenographers, and assistants as may be deemed necessary to carry out the work of the committee, but due diligence shall be exercised by the committee to enlist such voluntary assistance as may be available from citizens, research organizations, and other agencies in Pennsylvania or elsewhere, generally recognized as qualified to aid the committee with information as to existing conditions or advise as to possibilities in correcting existing conditions pertaining to air and water pollution. The Legislative Reference Bureau and other agencies of the Commonwealth shall give the committee, on request, such information and assistance as may be reasonably accessible.
71 P.S. § 1187.3