South Dakota licenses its working plumbers under a class named simply Plumber — the state uses no journeyman or master class name for this credential — and examines them in person through the State Plumbing Commission on the 2024 Uniform Plumbing Code as South Dakota has adopted it. The examination runs in three parts with three different relationships to the code book: code questions with the code allowed, code questions with the code forbidden, and a written drawings sizing exercise, also with the code forbidden, passed at 70 percent. The PassProfessor South Dakota Plumber program prepares candidates for all three parts as the Commission gives them. The companion guide is at /south-dakota-journeyman-plumber-exam-guide/.
This program is part of the expanding PassProfessor catalog — join the notify list and we’ll email you when enrollment opens.
What this credential certifies
The South Dakota Plumber credential certifies an individual to perform plumbing work in South Dakota at the examined working level: installing, altering, and repairing water supply, drainage, waste, and vent systems and the fixtures they serve, with competence established by the State Plumbing Commission’s examination rather than by experience alone. The naming deserves attention at the outset, because candidates arriving from other states look for titles South Dakota does not use. The class is named simply Plumber. There is no journeyman class name and no master class name attached to this credential; a separate contractor level stands in the system — its passing standard is 80 percent, against the Plumber’s 70 percent — but the working credential itself carries the plain name.
The second feature to fix at the outset is who examines. The examination is Commission-administered: the State Plumbing Commission itself gives the examination, at in-person sittings. There is no testing vendor and no bulletin from an outside administrator for this credential. The candidate applies to the Commission, sits under its process, and is licensed by it.
The examination at a glance
| Item | Verified position |
|---|---|
| Program | South Dakota Plumber: the class named simply Plumber (no journeyman or master class name); a contractor level stands separately in the system |
| Regulator and administrator | State Plumbing Commission — Commission-administered examinations at in-person sittings; no examination vendor |
| Examination basis | 2024 Uniform Plumbing Code (UPC) as adopted in the state plumbing code, with South Dakota amendments and exclusions — UPC Chapter 5 and Chapters 12–14 are excluded |
| Examination structure | Three parts: Part 1 code questions (code allowed, up to 2 hours); Part 2 code questions (code forbidden, up to 2 hours); Part 3 drawings sizing exercise (up to 1 hour, code forbidden for plumbers) |
| Passing standard | 70 percent for Plumber (80 percent for the contractor level, as ladder context) |
| Question counts | Not published — the Commission publishes no question count for the parts, and none is stated here |
| Book position | The parts differ and no single book label describes the sitting: the code is allowed in Part 1 and forbidden in Parts 2 and 3 |
| Part 3 character | A written sizing exercise on drawings — sizing stacks, wastes, and vents and inserting pipe sizes. It is not a hands-on practical |
| Fees in the verified record | Application $50; examination and re-examination $100; licence and annual renewal $105 |
| Continuing education | 4 hours, binding plumbers at renewal |
| Companion guide | /south-dakota-journeyman-plumber-exam-guide/ |
| Administrator note | PassProfessor is independent and is not affiliated with the State Plumbing Commission |
Three parts, three relationships to the code book
The South Dakota examination cannot be summarised by any single book label, and candidates who arrive expecting one will misprepare at least two-thirds of the sitting. Part 1 consists of code questions with the code allowed, in up to two hours: this part examines navigation — finding the governing provision in the 2024 UPC as South Dakota has adopted it and applying it to the question asked. Part 2 consists of code questions with the code forbidden, again in up to two hours: the same code, examined from knowledge. Provisions a candidate can only find, but does not actually know, are exposed here. Part 3, in up to one hour and also with the code forbidden for plumbers, is a drawings sizing exercise: the candidate is given drawings and must size stacks, wastes, and vents and insert the pipe sizes on the drawing. It is a written exercise performed on paper — no materials are handled, no joints are made, and it must never be described or prepared for as a hands-on practical — but it examines sizing as a performed skill: the numbers go onto the drawing, where they can be checked as work is checked.
The preparation consequence is a threefold discipline run in parallel. For Part 1, speed and accuracy with the book. For Part 2, retention: the core sizing methods, prohibitions, and requirements carried in memory, because the room offers nothing to consult. For Part 3, sizing fluency under the same closed condition, transferred onto drawings. A candidate strong in only one mode is prepared for one part of three, and the Commission’s structure is plainly designed to find exactly that candidate out.
The code: 2024 UPC, as South Dakota adopted it
Tested and adopted coincide in South Dakota, and the coincidence still needs care. The state plumbing code adopts the 2024 Uniform Plumbing Code with South Dakota amendments and exclusions, and the examination is given on that adopted code. The exclusions are substantive, not footnotes: UPC Chapter 5 and Chapters 12 through 14 are excluded from the adoption, so material in those chapters of a national UPC copy is not South Dakota law and is not the basis for credited answers. The amendments matter in the same direction: where the state has amended the UPC text, the amended text governs both the job and the sitting.
For the candidate, this makes the study text a specific object — the 2024 UPC as adopted in South Dakota, exclusions and amendments included — rather than any 2024 UPC volume pulled from a shelf. Preparation should mark the excluded chapters in the candidate’s own copy so they are never studied as live law, and carry the amendments alongside the chapters they touch. Candidates formed under an IPC-based system face the larger adjustment: the UPC’s organisation, terminology, and sizing methods are their own, and South Dakota examines inside that system without translation.
What the examination covers
Drainage and vent sizing, performed — examined in every part and culminating in Part 3: drainage fixture unit loads, stack, waste, and vent sizing, and the insertion of correct pipe sizes onto drawings, from knowledge in the parts where the code is forbidden.
Water supply and distribution — examined as fixture unit demand, distribution sizing under available pressure, and protection of the potable supply, including backflow and cross-connection control.
The code’s core requirements, from knowledge — examined in Part 2’s closed condition: materials, joints, traps, cleanouts, supports, and the prohibitions a plumber is expected to carry without consulting the text.
Code navigation under time — examined in Part 1’s allowed condition: locating the governing provision in the 2024 UPC as adopted, with its South Dakota amendments, and applying it accurately inside two hours.
Fixtures, water heaters, and system components — examined as installation requirements across the adopted code: clearances, connections, and relief and drainage provisions.
South Dakota’s adoption layer — examined as the exclusions and amendments themselves: knowing that Chapter 5 and Chapters 12–14 stand outside the adoption, and that amended provisions are answered in their South Dakota form.
The South Dakota layer: what makes this examination a South Dakota examination
Administration is the first layer. Commission-given, in-person sittings mean the route runs on the Commission’s arrangements rather than a vendor’s rolling calendar, and the candidate’s relationship throughout is with the licensing body itself. The economics in the verified record are correspondingly direct: an application fee of $50, an examination fee of $100 that is also the re-examination fee — a failed sitting and its retry are priced identically — and a licence fee of $105 that is also the annual renewal fee, so the credential’s yearly cost of standing is known from the first day. Continuing education attaches at renewal at 4 hours binding plumbers. One absence is worth stating because candidates from other states routinely assume its opposite: the verified record sets no state bond or insurance minimum for this credential.
The working landscape is the second layer. South Dakota practice spans cities, towns, farms, and ranches across long distances: the Plumber examined by the Commission may be the only examined plumber within a long drive of a given system. An examination that tests code knowledge with the book closed, and sizing as a performed drawing exercise, fits that landscape exactly — it certifies a plumber who can size and decide on the spot, from what they know.
The route, in order
The route runs in a plain order. Confirm that the Plumber class is the credential the intended work requires, holding the state’s naming straight: the contractor level is the separate level above it, not a part of this candidacy. Apply to the State Plumbing Commission and pay the $50 application fee. Build preparation on the examination’s basis — the 2024 UPC as South Dakota adopted it, exclusions marked and amendments carried — in the three modes the parts demand. Sit the three parts in person under the Commission’s arrangements, within their stated time allowances, and reach the 70 percent passing standard. On passing, take up the licence at $105 and hold it on its annual renewal at the same figure, completing the 4 hours of continuing education that bind plumbers at renewal. A re-examination, if one is needed, carries the same $100 fee as the first examination.
What makes this examination demanding
The demand is modal: the sitting changes its rules three times. A candidate can be genuinely strong with the code in hand and still fail the credential, because Part 2 removes the book and Part 3 removes it while also changing the task from answering to producing — sizes committed to a drawing, where partial understanding shows as plainly as it would on a job. Time discipline differs by part as well: two hours, two hours, one hour, with the shortest allowance attached to the most performative task.
Two factual traps complete the demand, both South Dakota-specific. The first is the excluded chapters: material in UPC Chapter 5 and Chapters 12–14 sits in the national text but outside the adoption, and answers drawn from it are answers to a code South Dakota has not adopted. The second is the single-label trap: any account that describes this examination with one book word for the whole sitting has misdescribed two of its three parts.
What the PassProfessor program will cover
Built on the platform architecture: a three-mode core plus a South Dakota delta. PassProfessor plumbing programs are composed for the sitting each state actually gives. For South Dakota the core is the 2024 UPC as adopted in the state, practised in the examination’s own three modes: timed code-navigation work with the code in hand for Part 1, unaided knowledge work for Part 2, and written sizing exercises on drawings — stacks, wastes, and vents sized and marked — for Part 3. The delta adds the Commission’s administration and in-person sittings, the Plumber class name in its exact form, the Chapter 5 and Chapters 12–14 exclusions and the state amendments, and the credential’s fee and renewal structure. The program prepares candidates for the written and drawing work the examination consists of; Part 3 is a written sizing exercise, and no part of this credential involves a hands-on practical for the program to rehearse or claim to cover. Every item is written from scratch against primary sources; no item is drawn from another provider’s material. The full treatment is in the companion guide at /south-dakota-journeyman-plumber-exam-guide/.
Three modes trained as three skills. The program keeps the modes separate in practice — navigation speed, unaided knowledge, and performed sizing are drilled as distinct abilities and then combined — because the Commission examines them separately.
Independence, stated plainly. PassProfessor is an independent preparation provider, not affiliated with the State Plumbing Commission, and this program is not a Commission course. Completing it confers no licence and no exemption; the Commission alone examines and licenses South Dakota plumbers.
Tell me when enrollment opens. The South Dakota Plumber program is in the works and enrollment is not yet open. Our catalog now includes South Dakota among the plumbing programs in preparation, and candidates who leave an email address will be written to when this program is ready — and only about this program. No date is promised, because the program will open when it meets the standard described above, not before.
Frequently asked questions
What is the South Dakota working plumber credential called?
Simply Plumber; there is no journeyman or master class name for this credential. A contractor level stands separately in the system.
Who administers the examination?
The State Plumbing Commission itself, at in-person sittings. There is no examination vendor for this credential.
What code is the examination based on?
The 2024 Uniform Plumbing Code as adopted in the South Dakota state plumbing code, with South Dakota amendments and exclusions. UPC Chapter 5 and Chapters 12–14 are excluded from the adoption. Tested and adopted coincide: the examination is given on the adopted code.
How is the examination structured?
In three parts. Part 1: code questions with the code allowed, up to two hours. Part 2: code questions with the code forbidden, up to two hours. Part 3: a drawings sizing exercise, up to one hour, with the code forbidden for plumbers.
Can candidates use the code book throughout the examination?
No. The code is allowed in Part 1 and forbidden in Parts 2 and 3; preparation must cover both conditions.
Is Part 3 a hands-on practical?
No. Part 3 is a written sizing exercise on drawings: the candidate sizes stacks, wastes, and vents and inserts the pipe sizes on the drawing. No materials are handled and no joints are made.
How many questions does the examination have?
The Commission publishes no question count for the parts, and this page states none. Counts in secondary material are not Commission-published figures.
What score passes?
70 percent for the Plumber class. The contractor level’s standard is 80 percent, stated here as ladder context only.
What fees does the verified record state?
Application $50; examination $100, with re-examination also $100; licence $105, with annual renewal also $105.
What continuing education does renewal require?
4 hours, binding plumbers at renewal.
Is there a state bond or insurance minimum for this credential?
No state bond or insurance minimum is set in the verified record for the Plumber credential.
Is PassProfessor affiliated with the State Plumbing Commission?
No. PassProfessor is an independent preparation provider. The Commission alone examines and licenses South Dakota plumbers.
Where can the fuller guide be read?
At /south-dakota-journeyman-plumber-exam-guide/, the companion exam guide to this program page, covering the three parts, the adopted code, the route, and a study plan in depth.
When does enrollment open?
The program is in the works and enrollment is not yet open. Leave an email address on this page and PassProfessor will write to you when the program is ready — and only about this program.