IAPMO UPC PI study materials
IAPMO UPC PI study resources

IAPMO UPC PI study plan

IAPMO UPC PI · Give each week a clear focus.

8 weeks · About 7 hours per week

Week 1

Uniform Plumbing Code - Water Supply, Drainage, Waste and Venting & Uniform Plumbing Code - General Regulations and Administration

  • Map the UPC chapters covering water supply, drainage, waste, and venting, and annotate the scope of each.

  • Define key terms such as fixture unit, developed length, stack, vent stack, and trap arm using the code text.

  • Calculate drain fixture unit loads for a single-bathroom and a two-bathroom dwelling using UPC tables.

  • Size a building drain and building sewer from a given fixture unit total using UPC sizing tables.

  • Identify general regulations on permits, inspections, and installer responsibilities that affect drainage work.

Your checkpoint

A one-page reference sheet with the drainage and venting chapter map, five key definitions, and two worked fixture-unit sizing examples.

Week 2

Uniform Plumbing Code - Water Supply, Drainage, Waste and Venting

  • Size branch intervals and stacks using UPC fixture unit and stack sizing tables for low-rise buildings.

  • Determine vent sizes for individual, branch, and circuit vents from the code tables and rules.

  • Apply wet-venting and common-vent restrictions to a sample layout.

  • Compute developed length of a drain and apply the slope and fall requirements for different pipe sizes.

  • Identify where cleanouts are required and how to space them along horizontal and vertical drainage piping.

Your checkpoint

A completed venting and cleanout plan for a two-story, two-bath dwelling, with all pipe sizes and slopes annotated.

Week 3

Uniform Plumbing Code - Water Supply, Drainage, Waste and Venting & Uniform Plumbing Code - Gas Piping and Mechanical Provisions

  • Size water supply piping and determine pressure requirements using UPC water supply tables and methods.

  • Explain the differences between drainage, waste, and vent piping and water supply piping in code application.

  • Identify gas piping materials, sizing methods, and installation requirements from the UPC gas chapters.

  • Calculate gas pipe sizes for a sample appliance load using the longest-length method.

  • List mechanical provisions such as water heater installation, relief valve, and venting requirements.

Your checkpoint

A water supply and gas piping sizing worksheet for a single-family dwelling, showing pipe sizes, pressure calculations, and gas load calculations.

Week 4

Uniform Plumbing Code - Plumbing Systems and Fixtures & Uniform Plumbing Code - Gas Piping and Mechanical Provisions

  • Identify fixture requirements for water closets, lavatories, bathtubs, showers, and sinks from UPC fixture chapters.

  • Determine minimum fixture clearances and installation requirements for bathrooms and kitchens.

  • Describe gas appliance connector requirements and the prohibition of concealed connectors.

  • Explain combustion air and venting requirements for gas-fired appliances.

  • Apply fixture unit values for common fixtures to a drainage load calculation.

Your checkpoint

A fixture and gas appliance checklist for a kitchen and bathroom remodel, citing the applicable UPC sections for each item.

Week 5

Uniform Plumbing Code - General Regulations and Administration & Uniform Plumbing Code - Plumbing Systems and Fixtures

  • Outline the permit process, inspection stages, and approval requirements from the administrative chapters.

  • Describe the roles of the authority having jurisdiction and the licensed contractor under the UPC.

  • Identify special plumbing systems such as medical gas, gray water, and rainwater catchment and their code references.

  • Explain the requirements for indirect waste receptors and special wastes.

  • Review the UPC appendices and determine which are adopted by reference in common jurisdictions.

Your checkpoint

A process flowchart of the permit-to-final-inspection sequence with the required inspection points and responsible party for each step.

Week 6

Inspection, Testing, and Plan Review Practice & Uniform Plumbing Code - Water Supply, Drainage, Waste and Venting

  • Develop a plan review checklist for drainage, venting, and water supply systems based on UPC requirements.

  • Describe the hydrostatic and water test procedures for drainage and water supply systems, including test pressures and durations.

  • Identify common code violations found during rough-in and final inspections.

  • Explain how to document inspection results and corrections.

  • Apply plan review skills to a sample set of plumbing drawings and list deficiencies.

Your checkpoint

A completed plan review of a sample residential plumbing plan with a written list of at least ten deficiencies and code citations.

Week 7

Inspection, Testing, and Plan Review Practice & Uniform Plumbing Code - General Regulations and Administration

  • Practice timed plan review and inspection scenarios covering all five domains.

  • Explain the appeal and variance process under the UPC administrative provisions.

  • Review testing requirements for gas piping and special systems.

  • Identify the documentation required for final approval and certificate of occupancy.

  • Analyze case studies of failed inspections and determine the corrective actions.

Your checkpoint

A timed 40-question practice exam with a score of at least 75% and a written review of every missed question.

Week 8

Uniform Plumbing Code - General Regulations and Administration & Uniform Plumbing Code - Plumbing Systems and Fixtures & Uniform Plumbing Code - Water Supply, Drainage, Waste and Venting & Uniform Plumbing Code - Gas Piping and Mechanical Provisions & Inspection, Testing, and Plan Review Practice

  • Complete two full-length timed practice exams covering all domains.

  • Review weak areas identified in practice exams and re-read the relevant UPC sections.

  • Memorize key tables and formulas for fixture units, sizing, and slope.

  • Practice explaining code requirements clearly in written form for inspection reports.

  • Finalize a one-page quick-reference sheet for exam day.

Your checkpoint

Two completed full-length practice exams with scores of at least 80% and a final one-page quick-reference sheet.

Milestones

Week 2: Complete the drainage and venting plan for a two-story dwelling with all pipe sizes and slopes correct, scoring at least 80% on a self-graded checklist.

Week 4: Pass a 25-question quiz on fixture and gas requirements with a score of at least 75%.

Week 6: Complete the plan review of a sample residential plan, identifying at least ten deficiencies with correct code citations.

Week 8: Score at least 80% on two full-length timed practice exams and demonstrate mastery of key sizing tables from memory.