ICC E3 study plan

Map the code book structure: locate chapters, article numbering, and the difference between mandatory and permissive rules

Practice navigating to 10 randomly chosen articles within 90 seconds each using only the index and table of contents

Distinguish wiring methods, conductor types, and standard plan-sheet symbols by writing definitions in your own words

Identify the plan-review sequence: scope, occupancy classification, load assumptions, then compliance checks

Translate a simple floor plan into a branch-circuit layout with receptacle and lighting outlet placements

Apply general-purpose receptacle spacing and small-appliance circuit rules to two sample rooms

Compute demand factors for general lighting loads using the standard table method

Explain when a plan reviewer would reject a layout and cite the governing rule category

Calculate branch-circuit conductor sizing for continuous and noncontinuous loads

Size overcurrent devices for a feeder serving mixed loads using demand factors

Perform a full single-dwelling service calculation from a load inventory sheet

Check voltage-drop implications for a long feeder run and document the method

Size equipment grounding conductors and grounding electrode conductors for three sample services

Select overcurrent protection ratings that satisfy conductor ampacity and load requirements simultaneously

Identify the correct bonding points for service equipment, panels, and metallic piping systems

Distinguish grounding from bonding in written explanations for five scenarios

Apply overcurrent protection coordination concepts to a feeder-and-panel arrangement

Determine when ground-fault and arc-fault protection is required for given occupancies

Evaluate a plan reviewer's rejection of a grounding detail and write the corrected detail

Size and locate a grounding electrode system for a structure with multiple electrodes

Classify occupancies and identify the special rules that change wiring requirements for each

List the extra requirements for hazardous locations, healthcare, and assembly occupancies at a survey level

Apply plan-review administrative provisions: submittal completeness, revision tracking, and approval conditions

Draft a deficiency notice that is specific, actionable, and references the applicable rule category

Run a full plan review of a multi-page sample set from intake to written findings

Prioritize deficiencies by safety severity and document the reasoning

Reconcile conflicting details between architectural and electrical sheets

Verify that special-occupancy requirements are reflected in the submitted drawings

Complete timed practice sets across all four domains and log error patterns by category

Re-derive the two most error-prone calculations from memory without notes

Review every missed item and write the underlying rule in your own words

Build a final one-page summary of the highest-yield rules per domain