NBBI Inservice Inspector (IS) study plan

Map the structure of NBIC by part and supplement, and write a one-page index of where inspection, repair, and alteration requirements live

Define the inspector's duties and jurisdictional boundaries in your own words, citing the NBIC section that establishes each duty

List the acceptance criteria categories used for boiler inspections (material, thickness, corrosion allowance, crack detection) and note which NBIC part governs each

Build a personal glossary of 30 NBIC-defined terms with the exact section reference for each

Walk through the NBIC inspection planning sequence from pre-inspection preparation to report issuance, and write the sequence as a numbered checklist

Compare new-construction, in-service, and post-repair inspection requirements and tabulate the differences

Identify the records an inspector must review before signing a report and explain why each matters

Practice locating five randomly chosen NBIC clauses in under two minutes each using only the code index

Explain the mechanisms of boiler deterioration (corrosion, erosion, fatigue, overheating, caustic embrittlement) and match each to its typical inspection location

Describe NDE methods used in pressure vessel inspection and state what each method can and cannot detect

Draft the inspection points for a firetube boiler and a watertube boiler, noting where they diverge

Summarize hydrostatic test requirements and the conditions under which a hydro test is required versus optional

Distinguish repair from alteration using NBIC definitions and classify ten realistic scenarios correctly

Trace the repair approval workflow from owner notification through authorized inspector sign-off and jurisdictional filing

Identify which repairs require a formal repair plan, which require qualification of the repair organization, and which allow routine maintenance

Explain post-repair inspection and testing requirements, including when a hydro test follows a weld repair

Outline the requirements for a repair organization's quality control system and the records it must retain

Describe weld procedure and welder qualification expectations for pressure-retaining repairs and who accepts them

Explain the rules for altering a pressure vessel, including rerating, changes to MAWP, and required nameplate and documentation updates

List the documentation package required to close out an alteration and identify who signs each document

Explain the function of pressure relief devices and the consequences of undersizing, oversizing, and set pressure drift

Describe the capacity certification and sizing basis for relief valves and how required capacity is determined

Outline relief valve inspection, testing, and setting requirements, including bench test versus in-place considerations

Identify the documentation required for relief valve servicing and how it links back to the repair and alteration rules

Compare relief valve types and select the appropriate type for given service conditions across five scenarios

Explain the requirements for relief device installation, including inlet and outlet piping considerations that affect performance

Describe the inspection of rupture disks and other non-reclosing devices and their interaction with relief valves

Identify common causes of relief valve failure and the inspection findings that signal each cause

Complete two full timed practice sets spanning all four domains and score each by domain to expose weak areas

Re-review every missed item and write a corrected explanation citing the governing NBIC section

Recite the repair-versus-alteration decision logic and the relief valve testing sequence from memory

Build a one-page final review sheet of the highest-risk facts across all four domains