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PSI Arizona R-4 Boilers, including Solar (residential/Commercial) Certification Package


To be certified The Arizona Business Management exam must be taken as well.

Installation and repair of steam and hot water boilers. If necessary, a new circuit may be added to the existing service panel or sub-panel. Excluded is the installation of a new service panel or sub-panel. This scope includes the C-4R subclassification.

The R-4 exam is 50 questions in 120 minutes, with a minimum passing score of 70%.

The R-4 Solar exam is 30 questions in 75 minutes, with a minimum passing score of 70%.

The reference material listed above was used to prepare the questions for this examination. The examination may also contain questions based on trade knowledge or general industry practices. Except for Code books, you can base your answers on later editions of references as they become available. For Code questions, the examinations will be based only on the edition of the Code book that is listed.

Candidates may use a silent, nonprinting, non-programmable calculator in the examination center.

The first 3 books may be brought into the exam center. The last two may not. The last book is specifically for the solar exam. 

The following reference material is allowed in the examination center:

Code of Federal Regulations - 29 CFR Part 1926 (OSHA)

International Mechanical Code, 2009

International Fuel Gas Code, 2009

The following reference material is not allowed in the examination center:

Low Pressure Boilers


The following reference material is not allowed in the examination center:

Solar Water and Pool Heating Design and Installation Manual

Candidates are responsible for bringing their own references to the examination center. Reference materials may be highlighted, underlined, annotated and/or indexed prior to the examination session. However, references may not be written in during the examination session. Any candidate caught writing, highlighting, underlining and/or indexing in the references during the examination will be reported to the Arizona Registrar of Contractors. Furthermore, candidates are not permitted to bring in any additional papers (loose or attached) with their approved references. References may be tabbed/indexed with permanent tabs only. (permanent tabs are defined as tabs that would tear the page if removed). Temporary tabs, (defined as Post-It notes, or other tabs that may be removed without tearing the page) are not allowed and must be removed from the reference before the exam will begin. If you are downloading from the Internet, you may bring this reference into the testing center with you as long as it is bound. You can have it spiral bound or you may hole-punch it and put it in a binder. 


|title=Mandatory Business Exam|psi-arizona-buisness-management-exam-certification-package|title=Reference Materials|osha-construction-standards-regulations-29-cfr-1926|2009-international-fuel-gas-code|2009-international-mechanical-code|low-pressure-boilers|solar-water-and-pool-heating-design-and-installation-manual|title=Application Service|application-service|
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