By state
Study for your state.
Most states adopt the International Mechanical Code with their own amendments, and some write their own. Master Mechanical Buddy by Cross University grounds every answer in the edition your state enforces. Always confirm the edition with your local licensing board before you sit.
State study pages
Every other state
The code edition we know of for each. Pick your state on sign-up and Criss uses it in every answer.
AlabamaIMC 2021
AlaskaIMC 2018
ArizonaLocal adoption (mostly IMC 2018/2021)
ArkansasIMC 2021
ColoradoLocal adoption (mostly IMC 2021)
ConnecticutIMC 2021 (state amendments)
DelawareIMC 2018
District of ColumbiaIMC 2017
FloridaFlorida Mechanical Code 2023 (based on IMC)
GeorgiaIMC 2018 (state amendments)
HawaiiUMC-based, county-adopted
IdahoIMC 2018
IllinoisLocal adoption (Chicago has own code)
IndianaIndiana Mechanical Code (based on IMC 2014)
IowaIMC 2021
KansasLocal adoption
KentuckyKentucky Mechanical Code (based on IMC)
LouisianaIMC 2021
MaineIMC 2015
MarylandIMC 2021
Massachusetts248 CMR (Massachusetts-specific)
MichiganMichigan Mechanical Code 2021 (based on IMC)
MinnesotaMinnesota Mechanical Code (based on IMC 2018)
MississippiIMC 2018
MissouriLocal adoption
MontanaIMC 2018
NebraskaIMC 2018
NevadaIMC 2021 (county amendments)
New HampshireIMC 2018
New JerseyIMC 2021 (NJ amendments)
New MexicoUMC 2021 (NM amendments)
New YorkNY State Mechanical Code (based on IMC 2020)
North CarolinaNC Mechanical Code 2018 (based on IMC)
North DakotaIMC 2018
OhioOhio Mechanical Code (based on IMC)
OklahomaIMC 2018
OregonOregon Mechanical Specialty Code (based on IMC)
PennsylvaniaIMC 2018 (Uniform Construction Code)
Rhode IslandIMC 2018 (state amendments)
South CarolinaIMC 2021
South DakotaIMC 2021
TennesseeIMC 2018
UtahIMC 2021
VermontIMC 2015
VirginiaVirginia Mechanical Code (based on IMC 2021)
WashingtonWAC 51-52 (based on IMC 2021)
West VirginiaIMC 2015
WisconsinWisconsin Commercial Building Code (based on IMC)
WyomingIMC 2018