OAR 918-225-0691
Boiler, Pressure Vessel and Pressure Piping Installation, Alteration or Repair Licensing Requirements


Persons installing, altering or repairing boilers and pressure vessels shall be licensed under these rules and may only work within the scope of their license.

(1)

Persons desiring to obtain certification under these rules shall:

(a)

Meet the qualifications for that license;

(b)

Apply as established by the division in OAR division 30.

(2)

Definitions. For the purpose of this rule:

(a)

“Direct Supervision” means the person supervised is in the physical presence of a qualified licensed person at the job site and the person doing the supervision is directly assigned to monitor and direct the activities of the person supervised. Direct supervision must be on a ratio of one qualified licensed person to one trainee/helper.

(b)

“Qualified Licensed Person” means a person who holds a Class 2, 3, 4, 5, 5-A or 5-B certification and is authorized to do the work involved without supervision;

(c)

“Supervision” means the individual person assigned to perform supervision under sections 6, 7 and 10 of this rule is directly and specifically assigned to monitor and direct the activities of the person being supervised. Both the person performing supervision and those being supervised shall be prepared to identify each other.

(3)

Class 1 Trainee/Helper License. A person holding this license may install, alter or repair boilers, pressure vessels and pressure piping providing the work is of a mechanical nature only. Work performed shall be under the direct supervision of a qualified licensed person. No ASME Code welding is permitted. There are no minimum qualifications required for applicants to obtain this license.

(4)

Class 2 Pressure Vessel Installer License. A person holding this license may install or repair unfired pressure vessels by any non-welded method of attachment.

(a)

There are no minimum qualifications required to obtain this license. Applicants shall pass an examination testing the applicant’s knowledge of the Boiler and Pressure Vessel Law, ORS 480.510 (Short title) to 480.665; OAR 918, division 225; and American Society of Mechanical Engineers, Boiler and Pressure Vessel Code, Section VIII, Division 1, General Requirements.

(b)

Persons who install refrigeration process equipment assembled and sold as a modular unit by the manufacturer and who do not attach piping to a pressure vessel during the installation are exempt from this rule. To qualify for this exemption, the attachment shall be made by any method other than fusion welding.

(5)

Class 3 Building Service Mechanic License. A person holding this license may install or repair boilers (including boiler and non-boiler external piping) and unfired pressure vessels by a non-welded method of attachment. Applicants shall:

(a)

Have at least 2,000 hours of experience installing and repairing boilers verified as established in OAR division 30;

(b)

Pass an examination testing the applicant’s knowledge of:

(A)

Boiler and Pressure Vessel Laws, ORS 480.510 (Short title) to 480.665; OAR 918, division 225; and the general requirements of the American Society of Mechanical Engineers, Boiler and Pressure Vessel Code, Sections I, IV, VI, VII and VIII, and CSD-1;

(B)

The State of Oregon Boiler Safety Program Study Guide;

(C)

Building Service Systems (Hydronics) for boilers and related appurtenances, American Society of Mechanical Engineers/ASME B31.1 Power Piping and B31.9 Building Service Piping; and

(D)

Structural and mechanical blueprints with the ability to interpret specifications.

(6)

Class 4 Boilermaker License. A person holding this license may install, alter or repair boilers and pressure vessels (excluding non-boiler external piping) by welding or other methods of attachment. Applicants shall:

(a)

Have 2,000 hours of experience doing welding and 2,000 hours of experience doing non-welding applications involving boilers or pressure vessels. Experience must be verified as established in OAR division 30; the verification must cover welding and non-welding applications separately; and

(b)

Pass an examination testing the applicant’s knowledge of:

(A)

Boiler and Pressure Vessel Laws, ORS 480.510 (Short title) to 480.665; OAR 918, division 225; and the general requirements of the American Society of Mechanical Engineers, Boiler and Pressure Vessel Code, Sections I, II, IV, V, VI, VII, VIII and IX, CSD-1, B31.1 and B31.9;

(B)

General boilermaker skills and procedures;

(C)

Blueprint reading, layout and shop mathematics;

(D)

Interpreting plans and specifications covering installation, alteration, repair, fabrication and erection of boilers and pressure vessels;

(E)

Welding process, metallurgy and other procedures particularly applicable to boilers and pressure vessels; and

(F)

The State of Oregon Boiler Safety Program Study Guide.

(c)

Class 4 Boilermakers may also perform the scope of work allowed under section (7) of these rules providing;

(A)

Work may only be done under the supervision of a qualified licensed person under section (7) of these rules; and

(B)

Prior to any welding, the individual must qualify to supervisor’s employer’s welding procedures.

(7)

Class 5 Pressure Piping Mechanic License. A person holding this license may:

(a)

Fabricate, install, alter and repair pressure piping; and

(b)

Install boilers and pressure vessels by attachment of piping connections;

(c)

Install, assemble and repair cast iron sectional boilers.

(A)

Applicants shall have a minimum of 2,000 hours of experience performing pipe-welding on ASME B31 pressure piping and 2,000 hours of experience performing work on pressure piping and boilers. Experience must be verified as established in OAR division 30; and

(B)

Pass an examination testing the applicant’s knowledge of:
(i)
American Society of Mechanical Engineers Boiler and Pressure Vessel Code, Sections I, II, IV, V, VI, VII, VIII, IX, CSD-1 and B31 Pressure Piping;
(ii)
Structural and mechanical blueprints with the ability to interpret specifications;
(iii)
Pressure piping systems and controls;
(iv)
Boiler and Pressure Vessel Laws, ORS 480.510 (Short title) to 480.665 and OAR 918, division 225;
(v)
The State of Oregon Boiler Safety Program Study Guide; and
(vi)
Welding and brazing processes, heat treatment, metallurgy and other procedures applicable to pressure piping systems.

(d)

Class 5 Pressure Piping Mechanics may also perform the scope of work allowed under section (6) of these rules providing;

(A)

Work may only be done under the supervision of a qualified licensed person under section (6) of these rules; and

(B)

Prior to any welding, the individual must qualify to supervisor’s employer’s welding procedures.

(8)

Class 5-A Process Piping Mechanic License. A person holding this license may fabricate, install, alter or repair B31.3 process piping. Applicants shall:

(a)

Have a minimum of 2,000 hours of experience performing pipe-welding or brazing on B31.3 process piping and 2,000 hours of experience performing work on pressure piping. Experience must be verified as established in OAR division 30; and

(b)

Pass an examination testing the applicant’s knowledge of:

(A)

American Society of Mechanical Engineers Boiler and Pressure Vessel Code, Section B31.3;

(B)

Structural and mechanical blueprints with the ability to interpret specifications;

(C)

Pressure piping controls;

(D)

Boiler and Pressure Vessel Laws, ORS 480.510 (Short title) to 480.665 and OAR 918, division 225; and

(E)

Welding, brazing, chemical bonding procedures, heat treatment, metallurgy and other procedures applicable to pressure piping systems.

(9)

Class 5-B Refrigeration Piping Mechanic License. A person holding this license may fabricate, install, alter or repair B31.5 refrigeration piping. Applicants shall:

(a)

Have a minimum of 2,000 hours of experience performing pipe-welding or brazing on B31.5 refrigeration piping and 2,000 hours of experience performing work on pressure piping. Experience must be verified as established in OAR division 30; and

(b)

Pass an examination testing the applicant’s knowledge of:

(A)

American Society of Mechanical Engineers Boiler and Pressure Vessel Code, Section B31.5;

(B)

Structural and mechanical blueprints with the ability to interpret specifications;

(C)

Pressure piping controls;

(D)

Boiler and Pressure Vessel Laws, ORS 480.510 (Short title) to 480.665 and OAR 918, division 225; and

(E)

Welding, brazing, heat treatment, metallurgy and other procedures applicable to pressure piping systems.

(10)

Class 6 Welder License. A person holding this license may weld on boilers, pressure vessels or pressure piping while employed by an approved welding employer. Work may only be performed under the supervision of a person certified under sections (6) through (9) of this rule as applicable. More than one welder may be supervised by one appropriately qualified licensed person under this license.

(a)

A Class 6 Welder may also perform the scope of work under section (3) of this rule providing the work performed is under the direct supervision of a qualified licensed person under sections (4) through (9) of these rules.

(b)

Applicants shall be qualified as a welder in accordance with the American Society of Mechanical Engineers Boiler and Pressure Vessel Code, Section IX, Part QW. The employer shall attest in writing that the applicant is qualified under that code section and is currently qualified to that employer’s welding procedures. This written statement is not transferable to another employer.
[Publications: Publications referenced are available from the agency.]

Source: Rule 918-225-0691 — Boiler, Pressure Vessel and Pressure Piping Installation, Alteration or Repair Licensing Requirements, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=918-225-0691.

918‑225‑0240
Definitions
918‑225‑0300
Exemptions for Fired Water Heaters
918‑225‑0310
Exemptions for Refrigerant Piping Systems
918‑225‑0315
Exemptions for Process Piping Systems
918‑225‑0320
Exemptions for Refrigerant or Air Conditioning Pressure Vessels
918‑225‑0330
Exemptions for Unfired Pressure Vessels With an Inside Diameter of Six Inches and Less
918‑225‑0340
Exemptions for Pressure Containing Parts of Piping Components
918‑225‑0350
Exemptions for Hot Water Storage Tanks
918‑225‑0360
Exemptions for Certain Pressure Vessels
918‑225‑0365
Exemptions for Certain Miniature Boilers
918‑225‑0370
Exemptions for Coil-Type Water Boilers
918‑225‑0380
Exemptions for Refrigeration Chillers
918‑225‑0430
Adopted Oregon Boiler and Pressure Vessel Specialty Code
918‑225‑0435
Amendments to the Oregon Boiler and Pressure Vessel Specialty Code
918‑225‑0445
Other Installation Standards
918‑225‑0450
Manufacturer’s Data Reports
918‑225‑0460
Reporting of Accidents and Conditions of Use
918‑225‑0465
Boiler Room Usage
918‑225‑0470
Boiler Operation
918‑225‑0510
Installation of Buried Vessels
918‑225‑0540
Scope of Special Inspector’s Authority
918‑225‑0560
Responsibility of Inspectors
918‑225‑0562
Process Piping Inspector Responsibilities
918‑225‑0565
Reporting of Immediate Hazards to Health or Safety
918‑225‑0570
Boiler and Pressure Vessel Inspection Schedules
918‑225‑0590
Inspection Cycle Extension Program
918‑225‑0600
Permits
918‑225‑0606
Issuance and Purchase of Minor Repair Permits
918‑225‑0609
Use of Minor Repair Permits
918‑225‑0612
Scope of Work Allowed under Minor Repair Permit
918‑225‑0615
Inspection of Minor Repair Permits
918‑225‑0618
Misuse of Minor Repair Permits
918‑225‑0620
Bulk Rate Permits
918‑225‑0630
Special Fee for Dryer Permits
918‑225‑0640
Business and Trade License Fees
918‑225‑0650
Practical Experience Requirement
918‑225‑0660
Certification of Special Inspectors
918‑225‑0665
Certification of Process Piping Inspectors
918‑225‑0670
Fees for Inspector Examination, Certification and Renewal
918‑225‑0691
Boiler, Pressure Vessel and Pressure Piping Installation, Alteration or Repair Licensing Requirements
918‑225‑0700
Responsibility of Boiler Contractors
918‑225‑0720
Welding Requirements for Owner-Users
918‑225‑0730
Requirements for Businesses Doing Welding or Brazing
918‑225‑0740
Quality Control System for Pressure Piping
918‑225‑0745
Contractor Registration
918‑225‑0780
Filing of Insurance Notices
Last Updated

Jun. 8, 2021

Rule 918-225-0691’s source at or​.us