The United States Constitution provides that each "House may determine the Rules of its Proceedings," therefore each Congress of the United States, upon convening, approves its own governing rules of procedure. This clause has been interpreted by the courts to mean that a new Congress is not bound by the rules of proceedings of the previous Congress.
Currently the procedures of the United States House of Representatives are governed by the Constitution, the House Rules, and Jefferson's Manual.
Prior to the adoption of the rules by the United States House of Representatives, the House operates under general parliamentary rules and Jefferson's Manual but these are not binding on the current House until they are approved by the membership of the current Congress. Historically, the current Congress will adopt the rules of the previous Congress and make any amendments they think are necessary to govern themselves.
The Rules of the House of Representatives are prepared by the Clerk of the House. The 115th United States Congress has the rules of the 114th, subject to the amendments of H.RES.5, though rule 28 (XXVIII) is reserved. Rule I pertains to the Speaker of the House.
The Speaker calls the House to order, the Chaplain of the House then offers a prayer, and the Speaker and House approves the legislative journal from the previous legislative day. After approval of the journal the members recite the Pledge of Allegiance, followed by the start of legislative business.
The House generally adheres to the following order of priority as outlined in the House Rules, specifically Rule XIV during the 114th Congress, but variations exist to this order as a result of House Rules or parliamentary rules that take precedence. The House may suspend this order and conduct itself as it sees fit consistent with House Rules and with Parliamentary procedure.