ASME Boiler and Pressure Vessel Code + National Board Inspection Code, "latest edition and most current addenda" (OAC 380:25-3-4). Enforced by Oklahoma Department of Labor, Boiler & Pressure Vessel program (40 O.S. Sec. 141.1 et seq.). Verified on the primary source, re-checked weekly.
High-pressure boilers: annual certificate inspection. Low-pressure steam/vapor: external annual, internal every 2 yrs. Hot-water boilers: external annual. Pressure vessels: internal triennial.
Source: primary document
Statewide layer. County and city amendments sit on top; the building view resolves them from your ZIP.
In force; no pending change found - rule already auto-tracks the latest ASME/NBIC edition
There is no federal boiler certificate; the state program below is the whole obligation, with the ASME Boiler and Pressure Vessel Code and the National Board Inspection Code as the referenced standards.
ASME Boiler and Pressure Vessel Code + National Board Inspection Code, "latest edition and most current addenda" (OAC 380:25-3-4). High-pressure boilers: annual certificate inspection. Low-pressure steam/vapor: external annual, internal every 2 yrs. Hot-water boilers: external annual. Pressure vessels: internal triennial.
Oklahoma Department of Labor, Boiler & Pressure Vessel program (40 O.S. Sec. 141.1 et seq.).
Nothing is scheduled. The rule above stays in force until the state adopts a newer edition or amends the program; AHJ Radar re-checks the source weekly.
One address, every authority that can cite it, and a record of who saw what. Cancel anytime. Public pages stay free.