Important Wyoming licensing distinction: Unlike states with a single statewide plumber board, Wyoming handles Journeyman Plumber licensing through municipalities and other local jurisdictions. There is no universal Wyoming plumbing exam question count, passing score, fee, or required code edition. Verify everything with your local licensing office before ordering exam-day books.
A Wyoming Journeyman Plumber license is generally a locally issued trade credential showing that a plumber has met the requirements of the city or county issuing the license. Those requirements may include trade experience, application approval, an examination, and other documentation.
Cities such as Casper and Cheyenne regulate plumbing licensing through their own local government systems. A journeyman classification usually reflects technical experience beyond entry-level plumbing work, while master-level and contractor classifications carry different responsibilities.
Journeyman plumbing work can involve building drains, drainage piping, water distribution, fixtures, vents, cleanouts, water heaters, backflow protection, and related plumbing installations. Some local classifications also cover fuel gas piping and equipment.
Do not assume a license earned in Casper automatically authorizes the same work in Cheyenne. Municipal recognition and reciprocity depend on local policies.
Statewide plumbing board: No statewide Wyoming journeyman plumbing licensing board.
Licensing authority: Applicable city or county government.
Local examples: Cheyenne and Casper.
Exam type: The municipality determines which examination or equivalent credential is accepted.
Code references: Based on local adoption and the selected exam's approved reference list.
Contractor-business license: May be separate from an individual journeyman license.
Start with the Wyoming Journeyman Plumber Ultimate Prep Package , then verify requirements through your local building department.
The most important first step is finding the correct local licensing authority.
| Step | Requirement | What to Verify |
|---|---|---|
| Identify Your Work Location | Local Jurisdiction | Determine which city or county regulates the plumbing work. |
| Confirm the License Classification | Journeyman Level | Decide whether you need general plumbing, plumbing with gas, or another classification. |
| Review Experience Requirements | Eligibility | Check the municipality's current work-history, training, or apprenticeship requirements. |
| Gather Supporting Documents | Application Evidence | Prepare experience records, existing licenses, and any other required proof. |
| Submit the Local Application | City or County Approval | File the appropriate application before scheduling an examination when required. |
| Confirm the Accepted Examination | ICC or Other Approved Test | Obtain the correct test code, time limit, passing score, and reference list. |
| Study the Approved References | Plumbing Code | Match code editions to your exact examination. |
| Pass the Required Examination | Technical Qualification | Follow the rules of the local board and designated exam provider. |
| Complete Local License Issuance | Final Approval | Pay applicable local fees and complete any remaining licensing conditions. |
Because licensing is local, the following table separates statewide facts from municipality-specific examples.
| Exam or Licensing Detail | Jurisdiction | What Applicants Should Know |
|---|---|---|
| Statewide Journeyman License | Wyoming | No statewide plumbing journeyman license is issued. |
| Primary Licensing Authority | Local | City or county building and licensing office. |
| Statewide Exam | Wyoming | There is no single mandatory statewide plumber examination. |
| Cheyenne Licensing | City of Cheyenne | Local contractor and craft-employee licensing requirements apply. |
| Casper Licensing | City of Casper | Local journeyman, master, and plumbing contractor licensing categories. |
| Casper Journeyman Experience | City of Casper | Published application materials specify four years of experience for a journeyman-level license. |
| Casper Passing Standard | City of Casper | Casper's published individual licensing application specifies 75%. Verify the applicable current rule. |
| ICC G28-N Exam | Casper-Related Prep | Journeyman Plumber with Gas classification. Confirm local acceptance before registering. |
| ICC G25 Exam | ICC Exam Program | National Standard Journeyman Plumber exam. Local recognition must be verified. |
| Code Edition | Local or Exam-Specific | The adopted local building code and approved examination references may use different editions. |
| Question Count | Exam-Specific | No universal Wyoming question count. |
| Time Limit | Exam-Specific | Obtain current timing from the approved exam provider. |
| Application Fees | Municipal | Fees vary by location and credential. |
| License Renewal | Municipal | Each issuing jurisdiction sets applicable renewal requirements. |
Important: An ICC examination's published passing score and a city's license-approval requirements are not always interchangeable. Ask the local licensing department which scores and credentials it accepts.
Local examples: Visit Cheyenne Building Permitting & Licensing or the City of Casper for current local instructions.
There is no single examination called the Wyoming State Journeyman Plumber Exam that every plumber must pass. Instead, the exam you take depends on the municipality, the license level, and whether your classification includes fuel gas work.
Some Wyoming municipalities recognize International Code Council examinations as part of local qualification. Relevant ICC classifications include National Standard Journeyman Plumber and National Standard Journeyman Plumber with Gas.
These exams evaluate practical plumbing knowledge and code interpretation. Common subject areas include general regulations, fixtures, water heaters, water distribution, sanitary drainage, venting, traps, interceptors, storm drainage, and plan reading.
Exams that include fuel gas add topics such as gas piping, gas appliances, combustion air, venting, and gas safety requirements. A plumbing-only study guide may not cover enough material for a license classification that includes gas.
Open-book ICC examinations reward candidates who understand code organization and can find tables quickly. However, the exact reference edition and allowed tabbing practices depend on the selected examination.
For example, the ICC G25 National Standard Journeyman Plumber Exam Prep Package is based on the 2018 International Plumbing Code, while the Casper G28-N Book Package includes the 2018 Plumbing Code and 2018 Fuel Gas Code.
Before you memorize test timing or purchase books, request the exact exam code and current candidate bulletin from your licensing department. That one step can prevent studying the wrong code edition.
Successful plumbing exam preparation starts with understanding the actual test required by your city. Once you know the examination, identify the code edition, approved references, major topics, and test format.
Many journeyman plumber exams focus on applying code requirements to real installation situations. Knowing which system is involved makes it easier to locate the correct rule.
Plumbing Code Navigation: Study definitions, general regulations, tables, chapter organization, and local amendments.
Sanitary Drainage: Practice fixture units, drainage sizing, slopes, branch connections, and cleanouts.
Venting: Review trap venting, vent types, wet vents, sizing, and arrangement rules.
Water Supply: Study pipe sizes, pressure, distribution systems, valves, and materials.
Fixtures and Equipment: Review fixtures, fittings, water heaters, clearances, and installation standards.
Backflow Prevention: Understand cross-connections, approved protective devices, and water safety.
Fuel Gas: If your municipal exam includes gas, practice fuel gas piping, appliance connections, combustion air, and venting requirements.
Plumbing Mathematics: Practice measurements, unit conversions, sizing calculations, and isometric diagrams.
For a structured foundation, see the Wyoming Journeyman Plumber Ultimate Package . Use your local examination bulletin to confirm that the study materials match your test.
One of the most useful plumbing exam skills is visualizing the piping system described in a question. A simple sketch can make a complicated drain, vent, or supply arrangement much easier to understand.
Practice pipe layouts, plumbing calculations, code tables, and system design.
A practical path from experience and local application to examination and credential issuance.
Find the city or county department responsible for licensing plumbing professionals where you plan to work.
Check whether you need a Journeyman Plumber, Journeyman Plumber with Gas, or another local classification.
Review the local work-experience, apprenticeship, and documentation requirements.
Apply through the municipal licensing office and wait for any required approval.
Obtain the correct ICC or other accepted test designation, score requirement, and reference list.
Study the proper code editions, reference tables, plumbing math, and gas code if required.
Complete the test under its current rules and submit the results to your local licensing department.
Meet remaining municipal requirements, maintain your license, and verify separate contractor-business rules.
These percentages represent suggested study emphasis. They are not official Wyoming examination weights. Your approved exam may use a different topic distribution.
Important: A plumber-with-gas exam may require substantially more fuel gas study than the general priority chart suggests. Always use your exam's current official content outline.
The required books depend on your specific municipal examination. The examples below show study materials connected to different ICC journeyman-plumber paths.
| Reference or Study Resource | Exam Context | What to Check |
|---|---|---|
| 2018 International Plumbing Code | ICC G25 and Casper G28-N prep products | Confirm whether the 2018 IPC is approved for your exact exam. |
| 2018 International Fuel Gas Code | Casper Journeyman Plumber with Gas G28-N | Required subject matter for the product's gas-related exam preparation. |
| 2021 International Plumbing Code | Wyoming Ultimate Prep Package | Included in the Wyoming product, but not automatically approved for every Wyoming municipal exam. |
| Local Plumbing Code and Amendments | City or County | Review adopted local codes and any additional amendments. |
| Journeyman Plumber Study Guide | Supplemental Practice | Practice questions and explanations may support general trade knowledge. |
| Official ICC Candidate Bulletin | Selected ICC Exam | Current question count, exam time, references, and permitted materials. |
| Municipal Licensing Rules | Local Credential | Experience, test acceptance, fee, and license issuance rules. |
Do not mix code editions: The 1 Exam Prep Wyoming Ultimate Package includes the 2021 IPC. The Casper G28-N book package includes the 2018 IPC and 2018 International Fuel Gas Code. These are different reference sets for different study purposes.
Exam-room rule: Use the current ICC bulletin and local licensing instructions to decide which books, tabs, notes, and other materials are permitted.
If your approved examination is open book, preparation should include daily reference practice. Knowing exactly where to find a rule is often as valuable as remembering the rule itself.
Reference tip: Permanent code tabs may help during practice, but you must verify whether they are permitted in your specific exam. Rules vary by test provider and examination program.
The work permitted under a Wyoming Journeyman Plumber license depends on the local classification and issuing jurisdiction. A journeyman generally performs plumbing work under the conditions established by the municipality.
Common plumbing activities include installing water distribution pipes, sanitary drainage systems, traps, vents, fixtures, water heaters, and related equipment. The work must meet applicable code and inspection requirements.
In cities offering a Journeyman Plumber with Gas classification, qualifying work may also involve fuel gas piping and related gas appliance connections within the approved scope.
A journeyman's local license is not always equivalent to a master plumber credential. Master-level licensing often involves additional experience and supervisory responsibility.
Plumbing businesses may also need company licenses, qualified supervisors, insurance, permits, and other municipal approvals.
Cheyenne business distinction: The city's licensing page states that company licenses are paired with an Individual Qualified Supervisor license.
Check Cheyenne's official licensing information or the relevant local authority before operating a plumbing business.
Titles and requirements may differ between municipalities. These examples show the general distinctions.
| Classification | Main Purpose | Typical Requirement | Key Difference |
|---|---|---|---|
| Plumbing Apprentice | Learn plumbing through supervised work | Local registration or training requirements | Entry-level pathway |
| Journeyman Plumber | Perform qualifying plumbing work | Municipal experience and testing rules | Individual trade credential |
| Journeyman Plumber with Gas | Plumbing and permitted fuel gas activities | Accepted with-gas examination and local approval | Includes gas-related subject matter |
| Master Plumber | Higher-level plumbing responsibility and supervision | Additional experience and municipal qualification | Different credential from journeyman |
| Plumbing Contractor | Operate a plumbing contracting business | Company licensing, qualifying person, and other local requirements | Business authorization |
Why local review matters: A four-year experience requirement found in Casper's published materials should not be presented as a universal statewide Wyoming rule.
Begin with municipal requirements, then build plumbing knowledge and finish with exam-specific practice.
The difficulty of a Wyoming Journeyman Plumber examination depends partly on the specific test accepted by your municipality. An exam covering plumbing and fuel gas naturally requires broader preparation than a plumbing-only test.
Many candidates already know how to install piping, troubleshoot leaks, and connect plumbing fixtures. Examination questions may ask them to explain exactly why a particular method is permitted or prohibited.
Code-based exams can test the difference between a common field practice and the precise wording of an adopted code. This is why learning to navigate definitions, tables, exceptions, and footnotes is important.
Drainage and venting questions can be particularly demanding because they require candidates to understand the system as a whole. One connection can affect the performance of another.
Plumbing mathematics adds another challenge. Pipe sizing, pressure, slope, volume, and conversions become easier with repeated practice. Rushing through a calculation may turn a simple problem into an avoidable mistake.
Test preparation also becomes more difficult if a candidate studies the wrong edition of the plumbing code. Wyoming municipalities may adopt or accept different references, so the correct examination bulletin should guide your plan.
An organized study routine can make these challenges manageable. Review the code, answer questions, correct mistakes, and repeat. Plumbing is supposed to flow. Your study schedule should too.
Exam-day authority: Your exam provider's current instructions determine approved books, testing procedures, identification, and other examination requirements. Your municipality controls final licensing acceptance.
Before buying: The Wyoming Ultimate Package, ICC G25 Package, and Casper G28-N Package do not all use the same code editions or address exactly the same test.
Recommended first step: Contact your city or county, confirm your exact examination, and choose books that match its current reference list.

This Wyoming-specific image comes from the 1 Exam Prep Journeyman Plumber Ultimate Package listing. It shows plumbing code and course materials related to the topic. It is a study-product image, not a government-issued license.
• Wyoming municipal plumber licensing
• Journeyman-level plumbing examinations
• International Plumbing Code study
• Drainage and venting
• Water supply and distribution
• Plumbing fixtures and water heaters
• Traps, cleanouts, and interceptors
• Plumbing calculations
• Isometric drawing practice
• Fuel gas topics where required
• Code-reference navigation
• Local licensing verification
The original product graphic displays an older publication year. Check the current product listing for exactly which editions and materials are supplied.
Wyoming Plumbing Licensing
No. Wyoming does not have a statewide journeyman plumbing licensing program. Plumbing credentials are issued by local jurisdictions where required.
Municipal or county building and licensing departments handle plumbing licensing. Cheyenne and Casper are examples of cities with local plumbing licensing systems.
Not necessarily. Local rules may distinguish an individual journeyman credential from a plumbing contractor business license.
Do not assume automatic recognition. Ask Cheyenne's licensing department whether it accepts your existing credentials, experience, or examination.
Journeyman Examination Requirements
There is no universal question count. It depends on the exam selected and accepted by your municipality.
Wyoming does not set one statewide plumber passing score. Each municipality determines its own acceptance requirements. Casper's published individual application specifies 75%.
Many relevant ICC examinations are open book, but the exact examination rules depend on the accepted test and its current candidate bulletin.
ICC G25 is a National Standard Journeyman Plumber examination. Candidates should confirm whether their municipality accepts it before registering.
It is a National Standard Journeyman Plumber with Gas examination covering plumbing and fuel gas-related knowledge. 1 Exam Prep offers a Casper-specific reference package for this designation.
Experience and Local Applications
Casper's published individual contractor license application specifies four years for journeyman-level applicants. Verify the current version before applying.
Yes. Cheyenne's Building Permitting & Licensing Division states that company licenses must be paired with an Individual Qualified Supervisor license.
No. Wyoming's State Fire Marshal handles statewide electrical licensing, not a statewide journeyman plumber credential. Contact the local plumbing licensing authority.
It depends on the municipality. A local department may review experience, existing licenses, or equivalent examinations. Recognition is not automatic.
Codebooks and Study Subjects
International Plumbing Code editions are used in relevant Wyoming municipal code and ICC exam preparation. Confirm the exact edition adopted locally and required by your examination.
No. The 2021 IPC is included in the Wyoming Ultimate Prep Package, but municipal examinations may require other code editions.
Yes. The listed 1 Exam Prep Casper G28-N book package includes the 2018 International Plumbing Code and 2018 International Fuel Gas Code.
Yes. Sanitary drainage, traps, vents, sizing, and fixture connections are important topics in journeyman-level plumbing study.
Yes. Plumbing mathematics and isometric drawings improve your ability to interpret technical questions and piping layouts.
1 Exam Prep and Exam Preparation
Yes. 1 Exam Prep offers a Wyoming Journeyman Plumber Ultimate Package with a 2021 IPC book, study guide, tabs, and online course.
The advertised package includes the 2021 International Plumbing Code, code tabs, a Journeyman Plumber Study Guide, and an online Test Success course.
Ask your municipality for the exact examination code, required book editions, and licensing classification. Then choose the package matching those requirements.
No. Passing a qualifying examination is only one possible licensing requirement. The city or county must still approve the application and issue the credential.
Yes. 1 Exam Prep provides online plumber preparation, instructional videos, simulated exams, and code review. Match your final practice to the exact locally accepted test.
Watch this related video from the 1 Exam Prep YouTube channel covering Journeyman Plumber exam preparation, code study, drainage, water supply, venting, plumbing fixtures, and test-taking techniques. It supports general plumbing study for Wyoming candidates, but it does not replace local examination instructions.
Wyoming-specific reminder: There is no statewide plumbing journeyman examination. Confirm whether your city requires ICC G25, a plumber-with-gas test, or another approved examination. Then use the matching references for final preparation.
Combine 1 Exam Prep books and courses with official local licensing information. Municipal authorities control licensing approval, while the selected testing provider establishes exam procedures and authorized references.
Final verification: Before applying or purchasing exam-day books, confirm the licensing authority, accepted exam code, question count, passing standard, experience requirements, and approved references for your location.
Build stronger plumbing code navigation, drainage and venting knowledge, water supply skills, fixture installation understanding, plumbing mathematics, and isometric drawing confidence. If your local test includes gas, prepare for those requirements too. Start by confirming your exact municipality and accepted examination, then use study materials that match the right references.
Questions? Call 877-775-9400 or email sales@1examprep.com .
Wyoming Journeyman Plumber Exam Prep