Oklahoma Administrative Code (Last Updated: March 11, 2021) |
TITLE 380. Department of Labor |
Chapter 25. Boiler and Pressure Vessel Rules |
Subchapter 3. Administration |
SECTION 380:25-3-27. Application of state serial numbers
Latest version.
- (a) Upon completion of the installation of a boiler or pressure vessel or at the time of the initial certificate inspection of an existing installation, each boiler or pressure vessel shall be stamped, or otherwise marked or identified, by the Chief Boiler Inspector or Deputy Inspector with a serial number of the state consisting of letters and figures to be not less than 1/4 inch in height and arranged as follows: OK00000(b) Hot water supply heaters shall be identified by a pre-numbered label provided by the Department of Labor.