IAPMO UMC MI study plan

IAPMO UMC MI · Give each week a clear focus.

8 weeks · About 7 hours per week

Week 1

Uniform Mechanical Code & Administration, Permits and Code Enforcement

Map the UMC table of contents chapter by chapter and mark which chapters feed Domain 1 (scope, definitions, general regulations, ventilation, duct systems, combustion air, chimneys and vents, boilers, appliances)
Define in your own words the 40 terms most frequently tested from the UMC definitions chapter, including clearance, plenum, connector, draft hood, and forced-draft appliance
Outline the permit and inspection workflow in Domain 4: when a permit is required, plan review triggers, and the sequence of rough-in and final inspections
Build a one-page cross-reference sheet linking each mechanical scope item to the UMC chapter that governs it

A 2-page domain map plus a 40-term definitions glossary written in your own words

Week 2

Interpret UMC general regulations on appliance location, access for service, clearances to combustibles, and protection from physical damage
Apply combustion air and ventilation requirements to a sample mechanical room, calculating required free area for two-permanent-opening and one-permanent-opening methods
Distinguish Type B vent, Type L vent, single-wall connector, and factory-built chimney applications and where each is permitted
Solve 15 code-lookup drills that require locating an exact section number and restating the requirement

A worked combustion-air calculation set for three sample rooms with section citations for each step

Week 3

Size a residential forced-air duct system using the equal-friction method and verify results against the UMC duct sizing tables
Calculate heating and cooling loads for a sample single-family dwelling using an approved load calculation method and select equipment to match
Lay out supply and return registers to satisfy throw, spread, and room air distribution expectations
Specify duct insulation, sealing, and support spacing consistent with UMC installation requirements

A complete duct layout drawing with a sizing table, load summary, and cited code sections

Week 4

Design a condensate drainage system for a cooling coil, including trap depth, slope, and secondary drain or pan protection
Plan the testing sequence for a new installation: pressure test of fuel gas piping, duct leakage test, and flue draft verification
Write an inspection checklist an inspector would actually carry for a residential furnace and coil replacement
Identify the maintenance intervals and access requirements that affect design decisions, such as filter access and coil cleaning clearance

A full inspection checklist covering rough-in and final for one residential furnace and coil job

Week 5

Perform fuel gas piping pressure tests at the correct test pressure and duration for the piping volume and system type, and record results on a sample test form
Evaluate venting performance by checking draft, spillage at the draft hood, and termination clearances against UMC requirements
Diagnose five common failure scenarios (blocked flue, undersized combustion air, improper slope, missing trap, wrong connector material) and state the corrective action
Describe acceptance criteria for duct leakage testing and how to document a passing result

Five written diagnostic case studies, each with observed condition, code violation cited, and corrective action

Week 6

Assemble a preventive maintenance schedule for commercial rooftop units, including filter, belt, coil, and economizer checks with intervals
Explain the code official's authority to approve alternate materials and methods and the documentation a contractor must submit to support a request
Outline the process for a notice of violation, correction notice, and reinspection, including timelines and stop-work authority
Draft a permit application package for a small commercial HVAC replacement, listing required submittals and plan review items

A maintenance schedule plus a complete sample permit application package with submittal list

Week 7

Trace the appeals and board of appeals process, including who may appeal, time limits, and what a stay of enforcement means
Differentiate the roles of the design professional, contractor, installer, and inspector in code compliance and liability
Practice writing correction notices that cite the specific section, describe the deficiency factually, and state the required correction
Review contractor licensing, bonding, and insurance verification steps a jurisdiction performs before issuing a permit

Ten written correction notices with accurate section citations and a one-page appeals process summary

Week 8

Complete two full-length timed practice exams and score each domain separately to find weak areas
Re-read only the sections you missed twice, restating each requirement in your own words
Drill 30 rapid-fire code lookups under time pressure to build index familiarity
Consolidate your glossary, checklists, and calculation sheets into one indexed review binder

Two scored practice exams with a written remediation list and a final indexed review binder

Week 2: You can locate any UMC general regulation or venting requirement within 60 seconds and explain it without reading verbatim

Week 4: You can size a duct system and lay out a combustion air and condensate design for a sample dwelling without reference to notes

Week 6: You can write a correction notice and a permit submittal list that would survive review by a senior inspector

Week 8: Practice exam scores of 80 percent or higher in every domain, with no domain below 75 percent