(1)内閣総理大臣は、国会議員の中から国会の議決で、これを指名する。この指名は、他のすべての案件に先だつて、これを行ふ。
(2)衆議院と参議院とが異なつた指名の議決をした場合に、法律の定めるところにより、両議院の協議会を開いても意見が一致しないとき、又は衆議院が指名の議決をした後、国会休会中の期間を除いて十日以内に、参議院が、指名の議決をしないときは、衆議院の議決を国会の議決とする。

（英文）
The Prime Minister shall be designated from among the members of the Diet by a resolution of the Diet. This designation shall precede all other business.
If the House of Representatives and the House of Councillors disagree and if no agreement can be reached even through a joint committee of both Houses, provided for by law, or the House of Councillors fails to make designation within ten (10) days, exclusive of the period of recess, after the House of Representatives has made designation, the decision of the House of Representatives shall be the decision of the Diet.