46 Pa. Stat. § 461
The Commonwealth of Pennsylvania hereby recognizes the American Legislators' Association and its executive and administrative agency, the Interstate Legislative Reference Bureau, as agencies capable of rendering valuable assistance and information to the General Assembly of this Commonwealth, and the members thereof, and as agencies quasi-governmental in their character.
The President Pro Tempore of the Senate and the Speaker of the House of Representatives shall annually, respectively, appoint one senator and one member as delegates to attend the meetings of the American Legislators' Association; and the Director of the Legislative Reference Bureau, or some person from the staff of the Legislative Reference Bureau, appointed by the director, may attend annually the Legislative Reference Conference conducted under the auspices of the American Legislators' Association.
Biennially an item shall be inserted in the general appropriation law to pay the expenses of the delegates of the Senate and House attending the said conference. The expenses of the Director of the Legislative Reference Bureau, or his representative attending such conference, shall be paid from the regular appropriations to the Legislative Reference Bureau for such purposes.
46 P.S. § 461