Its wordings
Arbitration Act
Article 30, paragraph (1)
第三十条第一項
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
The languages to be used in an arbitration procedure and the procedures to be carried out by using those languages are as provided by the agreement of the parties.
仲裁手続において使用する言語及びその言語を使用して行うべき手続は、当事者が合意により定めるところによる。