A person who inspects the installation of or witnesses the testing of any nonflammable medical gas and vacuum piping system shall be certified to do so pursuant to division (E) of section 3781.10 of the Revised Code.
Inspectors or testing witnesses to be certified
Ohio Rev. Code Ann. § 4104.45, under Chapter 4104 | Boilers.
Ohio Rev. Code Ann. § 4104.45