Okla. Stat. tit. 40, § 40-141.13

A. The Commissioner of Labor or the chief boiler inspector, or

any deputy inspector, shall have free access, during reasonable

hours, to any premises in the state where a boiler or pressure

vessel is being constructed for use in, or is being installed in

this state for the purpose of ascertaining whether such boiler or

pressure vessel is being constructed and installed in accordance

with the provisions of the Boiler and Pressure Vessel Safety Act.

B. Each boiler and pressure vessel covered by the Boiler and

Pressure Vessel Safety Act shall be thoroughly inspected as to its

construction, installation and condition as follows:

1. Power boilers and high pressure high temperature water

boilers shall receive an inspection annually which shall be an

Oklahoma Statutes - Title 40. Labor Page 220

internal inspection where construction permits; otherwise it shall

be as complete an inspection as possible. Such boilers shall also

be externally inspected annually preferably while under pressure;

2. Low pressure steam or vapor heating boilers shall receive an

external inspection annually with an internal inspection at least

every two (2) years where construction permits;

3. Hot water heating and hot water supply boilers shall receive

an external inspection annually with an internal inspection at the

discretion of the inspector;

4. Hot water supply heaters shall receive a certificate

inspection annually, if possible, but biennially as a minimum;

5. Pressure vessels, excluding those within the scope of the

American Petroleum Institute Pressure Vessel Inspection Code,

subject to internal corrosion and waste heat steam generators shall

receive an internal inspection triennially where construction

permits. Pressure vessels not subject to internal corrosion shall

receive an inspection at intervals set by the Commissioner.

Frequency of external inspections of pressure vessels shall be set

by the Commissioner;

6. A grace period of two (2) months beyond the periods

specified in paragraphs 1, 2, 3, 4 and 5 of this subsection is

permitted between inspections; however, the inspection due date

shall not be affected; provided, however, for an entity with two or

more boilers or pressure vessels, the Commissioner may allow all

inspections of the boilers or pressure vessels to be conducted at

that location at the same time;

7. The Commissioner of Labor may provide for longer periods

between inspections in the rules for specific boilers and pressure

vessels; and

8. Under the provisions of the Boiler and Pressure Vessel

Safety Act, the Commissioner of Labor is responsible to provide

rules for the safety of life, limb and property and therefore has

jurisdiction over the interpretation and application of the

inspection requirements as provided for in the rules. Inspection

during construction and installation shall certify as to the minimum

requirement for safety as defined in the American Society of

Mechanical Engineers Code or other construction standards acceptable

to the Commissioner of Labor. Inspection requirements of operating

equipment shall be in accordance with generally accepted practice

and compatible with the actual service condition, such as:

a. previous experience, based on records of inspection,

performance and maintenance,

b. location, with respect to personnel hazard,

c. quality of inspection and operating personnel,

d. provision for related safe operating controls, and

e. interrelation with other operations outside the scope

of the Boiler and Pressure Vessel Safety Act.

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Based upon the documentation of such actual service conditions

by the owner or user of the operating equipment, the Commissioner of

Labor may, at his discretion, permit variations in the inspection

requirements.

C. The inspections herein required shall be made by the

Commissioner, chief boiler inspector, deputy inspector or a special
Safety Act.

Oklahoma Statutes - Title 40. Labor Page 221

Based upon the documentation of such actual service conditions

by the owner or user of the operating equipment, the Commissioner of

Labor may, at his discretion, permit variations in the inspection

requirements.

C. The inspections herein required shall be made by the

Commissioner, chief boiler inspector, deputy inspector or a special

inspector as provided for in the Boiler and Pressure Vessel Safety

Act except that hot water supply heaters may be inspected by state-

licensed boiler operators or state-licensed plumbers or plumbing

contractors. The Commissioner of Labor may designate by rule the

hot water supply heaters, by design type, that are not subject to

inspection.

D. Owner-user inspection of boilers and pressure vessels is

permitted provided the owner-user inspection service is regularly

established and is under the supervision of one or more individuals

whose qualifications are satisfactory to the Commissioner of Labor

and the owner-user causes the pressure vessels to be inspected in

conformance with the National Board Inspection Code or American

Petroleum Institute Pressure Vessel Inspection Code as applicable.

E. If, at the discretion of the inspector, a hydrostatic test

shall be deemed necessary, it shall be made by the owner or user or

his licensed representative and witnessed by an inspector as

authorized by the Boiler and Pressure Vessel Safety Act, before a

certificate of operation is issued.

F. All boilers, other than cast iron sectional boilers, and

pressure vessels to be installed in this state after the twelve-

month period from the date upon which the rules of the Commissioner

become effective, shall be inspected during construction as required

by the applicable rules by an inspector authorized to inspect

boilers and pressure vessels in this state, or if constructed

outside of the state, by an inspector holding a valid commission

issued by the National Board of Boiler and Pressure Vessel

Inspectors.

G. No person, firm or corporation shall in any manner interfere

with the performance of the official duties of any inspector

authorized by the Boiler and Pressure Vessel Safety Act.