BOABC Plumbing Level I study plan

Map the scope and structure of the plumbing code so you can locate any requirement within two minutes using the table of contents and index

Define the code's stated purpose, its minimum-standards intent, and the difference between code minimums and design preference

List the permit, inspection, and certificate-of-occupancy sequence a plumbing project must follow from application to final sign-off

Identify which work is exempt from permits and which always requires one, and state the reason for each exemption

Distinguish the roles of the authority having jurisdiction, the registered design professional, and the contractor in code compliance

Explain how code editions and local amendments interact, and describe which edition governs when documents conflict

Classify common plumbing materials and fittings by approved-use restrictions and prohibited applications

State the sizing and support requirements for water distribution and drainage piping well enough to recite them without notes

Read a full residential plumbing drawing set and label every fixture, riser, vent, and cleanout shown

Translate code requirements into plan-review checkpoints for fixture counts, trap arms, and venting

Identify the minimum information a submitted plan must contain to be accepted for review

Detect three common plan deficiencies, such as missing vent connections or undersized building drains, and write the correction comment for each

Compute fixture-unit loads for a building drain and compare the result against the correct sizing table

Verify minimum fixture clearances, access space, and installation dimensions against the code text

Check a water heater installation plan for relief valve, discharge piping, and seismic or expansion provisions

Cross-check a submitted plan against the local amendment list to confirm jurisdiction-specific requirements are met

Sequence the inspection milestones for rough-in, top-out, and final, and state what must be visible at each stage

Describe how to test a drainage system for watertightness and a water supply system for pressure, including test durations and pass criteria

Identify the top ten field defects inspectors cite and the code basis for each

Explain how to document a failed inspection, including what the correction notice must contain

Demonstrate how to handle a contractor dispute over an inspection finding while staying within the inspector's authority

Outline the steps for re-inspection after a correction, including what evidence of compliance is required

Apply recordkeeping and reporting duties to a sample case, deciding what is retained and for how long

Distinguish the code official's enforcement discretion from personal preference in two written scenarios

Summarize the ethical duties owed to the public, the permit holder, and the employing jurisdiction when these conflict

Identify conflicts of interest, such as inspecting work by a related party, and state the required disclosure or recusal

Explain the appeals and variance process and the limits on granting exceptions to code requirements

Describe the administrative workflow for permit issuance, fee calculation, and file maintenance

Complete two full-length timed practice exams and score each by domain

Rank your three weakest subareas from the score report and re-drill them until each reaches 80 percent

Recite the twenty highest-yield code facts from memory without reference material

Build a one-page exam-day reference of formulas, sizing steps, and inspection sequences