ICC M1 study plan
ICC M1 · Give each week a clear focus.
8 weeks · About 6 hours per week
General Administration, Definitions and Referenced Standards & Duct Systems, Chimneys, Vents and Combustion Air
Map the administrative chapter's scope, duties, permit flow, and inspection sequence into a numbered one-page workflow
Define in your own words the 60 most frequently tested mechanical terms (plenum, return air, forced-air furnace, vent connector, Type B vent, clearance to combustibles)
Locate every standard referenced by the mechanical provisions and record in one table what each standard actually governs
Explain how listed-appliance manufacturer instructions interact with, and override, general code text
Your checkpoint
A one-page administrative workflow plus a 60-term definition sheet, self-quizzed to at least 80% correct
Duct Systems, Chimneys, Vents and Combustion Air
Classify venting systems by category and pressure/temperature characteristics
Compute required combustion-air opening sizes using both the two-permanent-opening method and the one-opening method
Determine minimum vent connector slope, size, and rise for common appliance configurations
Identify required clearance-to-combustible distances for vents, connectors, and single-wall versus listed double-wall pipe
Recognize the conditions that require mechanical draft or power venting
Your checkpoint
Ten worked combustion-air and vent-sizing problems solved with zero arithmetic errors, plus a one-page clearance quick-reference card
Duct Systems, Chimneys, Vents and Combustion Air & Heating and Ventilation Equipment and Appliances
Evaluate duct sealing, support spacing, sag limits, and insulation requirements against the code text
Determine chimney termination height requirements relative to rooflines, walls, and adjacent openings
Differentiate duct types (supply, return, exhaust, plenum) and the rules attached to each
Begin classifying heating appliances by fuel, draft type, and configuration
Your checkpoint
A timed 40-question Domain 4 quiz scored at 75% or better, with every miss rewritten as a corrected rule statement
Heating and Ventilation Equipment and Appliances
Classify furnaces and boilers by fuel, draft category, and installation location
Apply clearance-to-combustible and access/working-space rules to specific appliance placements
Trace the combustion-air, venting, and safety-control requirements for a gas-fired forced-air furnace
Distinguish requirements for electric resistance heating, heat pumps in heating mode, and solid-fuel appliances
Verify appliance labeling, listing, and installation-instruction compliance
Your checkpoint
A 25-line-item inspection checklist for a gas forced-air furnace installation, each line traceable to a specific requirement
Heating and Ventilation Equipment and Appliances & Air Conditioning, Refrigeration and Cooling Systems
Complete the heating domain by resolving all remaining safety-control and clearance questions
Describe the refrigeration cycle stage by stage, naming components, state changes, and pressure relationships
Identify refrigerant classification and handling requirements as they appear in the mechanical provisions
Determine clearance and ventilation requirements for condensers and refrigerant-containing equipment
Your checkpoint
A hand-drawn, fully labeled refrigeration cycle diagram explained aloud from memory in under five minutes without notes
Air Conditioning, Refrigeration and Cooling Systems
Apply clearance, access, and service-space rules to cooling and refrigeration equipment
Evaluate condensate drainage, trap, and discharge requirements
Identify refrigerant detection, ventilation, and machinery-room requirements
Compare the rules for comfort cooling versus commercial refrigeration installations
Your checkpoint
A timed 40-question Domain 3 quiz scored at 75% or better, with a written correction for every missed item
General Administration, Definitions and Referenced Standards & Heating and Ventilation Equipment and Appliances & Air Conditioning, Refrigeration and Cooling Systems & Duct Systems, Chimneys, Vents and Combustion Air
Re-read the definitions and referenced-standards material and reconcile it with the technical domains
Categorize every missed practice question from weeks 1-6 by domain and root cause
Re-drill weak categories until each reaches 85% or better on a fresh set
Practice eliminating wrong answer choices on scenario-style inspection questions
Your checkpoint
A categorized error log where every root-cause bucket is re-tested to 85% or better
General Administration, Definitions and Referenced Standards & Heating and Ventilation Equipment and Appliances & Air Conditioning, Refrigeration and Cooling Systems & Duct Systems, Chimneys, Vents and Combustion Air
Complete two full-length timed practice exams under exam-day conditions
Review each exam in full, converting every miss into a corrected rule statement
Compress all four domains onto a single final formula, clearance, and definition sheet
Rehearse the administrative and referenced-standards content until recall is immediate
Your checkpoint
Two full-length timed exams scored at 80% or better, plus a finished one-page master reference sheet
Milestones
Week 2: Solve ten combustion-air and vent-sizing problems from scratch with no formula sheet and zero arithmetic errors
Week 4: Score 75% or better on both the Domain 4 and Domain 2 timed quizzes, with the furnace checklist complete
Week 6: Score 75% or better on the Domain 3 timed quiz and explain the refrigeration cycle from memory without prompts
Week 8: Score 80% or better on two full-length timed practice exams and have every missed item logged and corrected