Its wordings
Arbitration Act
Article 16, paragraph (2)
第十六条第二項
Each amendment that changed this provision, and each that will, oldest first. Each is shown against the wording just before it; where an amendment gives the provision another number, it is followed under the new one. Read it as it stands today
In force today
If there are two parties, and an agreement referred to in the preceding paragraph has not been reached, there will be three arbitrators.
当事者の数が二人である場合において、前項の合意がないときは、仲裁人の数は、三人とする。