2021 International Mechanical Code – IMC-2021
The 2021 International Mechanical Code® (IMC) establishes minimum standards for the design, installation, and maintenance of mechanical systems in residential, commercial, and industrial buildings. Covering everything from HVAC and ventilation to boilers and refrigeration, the IMC ensures safe, efficient, and code-compliant system operation. Fully coordinated with the 2021 I-Codes.
Highlights:
- Updated rules for appliance access, clearances, condensate drainage, and temperature control
- Comprehensive ventilation standards for occupied and unoccupied spaces, including hospitals and hazardous locations
- Detailed exhaust system requirements for kitchens, dryers, labs, garages, and smoke/grease control
- Regulates duct construction, dampers, insulation, filters, and fire/smoke control systems
- Refers to NFPA and IFGC standards for combustion air; includes chimney and flue guidance
- Covers installation standards for fireplaces, cooking appliances, sauna heaters, and fuel cells
- Includes safety and design rules for boilers, pressure vessels, relief valves, and tanks
- Establishes refrigeration system classification, design, piping, and testing procedures
- Provides hydronic system guidance for hot/chilled water piping, antifreeze, and insulation
- Sets safety standards for fuel oil piping, storage, and solar thermal systems
- Appendices include permit fee schedules, chimney diagrams, and appeal procedures
Who It’s For:
Mechanical contractors, engineers, inspectors, and HVAC professionals working on code-compliant building system design, installation, and maintenance.
IMC-2021
2021 International Mechanical Code – IMC-2021
The 2021 International Mechanical Code® (IMC) establishes minimum standards for the design, installation, and maintenance of mechanical systems in residential, commercial, and industrial buildings. Covering everything from HVAC and ventilation to boilers and refrigeration, the IMC ensures safe, efficient, and code-compliant system operation. Fully coordinated with the 2021 I-Codes.
Highlights:
- Updated rules for appliance access, clearances, condensate drainage, and temperature control
- Comprehensive ventilation standards for occupied and unoccupied spaces, including hospitals and hazardous locations
- Detailed exhaust system requirements for kitchens, dryers, labs, garages, and smoke/grease control
- Regulates duct construction, dampers, insulation, filters, and fire/smoke control systems
- Refers to NFPA and IFGC standards for combustion air; includes chimney and flue guidance
- Covers installation standards for fireplaces, cooking appliances, sauna heaters, and fuel cells
- Includes safety and design rules for boilers, pressure vessels, relief valves, and tanks
- Establishes refrigeration system classification, design, piping, and testing procedures
- Provides hydronic system guidance for hot/chilled water piping, antifreeze, and insulation
- Sets safety standards for fuel oil piping, storage, and solar thermal systems
- Appendices include permit fee schedules, chimney diagrams, and appeal procedures
Who It’s For:
Mechanical contractors, engineers, inspectors, and HVAC professionals working on code-compliant building system design, installation, and maintenance.
IMC-2021
2021 International Plumbing Code – IPC-2021
The 2021 International Plumbing Code® (IPC) establishes minimum standards for the design, installation, and inspection of plumbing systems in all building types—except one- and two-family dwellings and townhouses up to three stories, which are covered under the IRC. This code supports both prescriptive and performance-based approaches and promotes innovation in materials and design.
Highlights:
- Permits multiple-user all-gender toilet facilities
- Adds two approved methods for sewer relining and rehabilitation
- Allows rooftop solar panels to be installed over vent terminals
- Recognizes CSA B805/ICC 805 for rainwater harvesting system design
- Integrates accessibility provisions from ICC A117.1-2017
- Covers potable and nonpotable water, sanitary and storm drainage, venting, water heaters, and graywater systems
- Structured into prescriptive chapters with appendices and accessibility references
- Fully aligned with the 2021 I-Codes for unified plumbing regulation and enforcement
Who It’s For:
Plumbing engineers, contractors, inspectors, and code officials working on compliant, modern plumbing systems in commercial and multifamily buildings.
IPC-2021
2021 International Plumbing Code – IPC-2021
The 2021 International Plumbing Code® (IPC) establishes minimum standards for the design, installation, and inspection of plumbing systems in all building types—except one- and two-family dwellings and townhouses up to three stories, which are covered under the IRC. This code supports both prescriptive and performance-based approaches and promotes innovation in materials and design.
Highlights:
- Permits multiple-user all-gender toilet facilities
- Adds two approved methods for sewer relining and rehabilitation
- Allows rooftop solar panels to be installed over vent terminals
- Recognizes CSA B805/ICC 805 for rainwater harvesting system design
- Integrates accessibility provisions from ICC A117.1-2017
- Covers potable and nonpotable water, sanitary and storm drainage, venting, water heaters, and graywater systems
- Structured into prescriptive chapters with appendices and accessibility references
- Fully aligned with the 2021 I-Codes for unified plumbing regulation and enforcement
Who It’s For:
Plumbing engineers, contractors, inspectors, and code officials working on compliant, modern plumbing systems in commercial and multifamily buildings.
IPC-2021