2021 Uniform Plumbing Code – UPC 1-2021 (IAPMO)
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The 2021 Uniform Plumbing Code® (UPC), developed by IAPMO and approved through the ANSI consensus process, establishes minimum requirements for plumbing system design, installation, and inspection. It incorporates the latest safety, efficiency, and performance provisions used across residential, commercial, and industrial projects.
Highlights:
- Adds Appendix N for defining scald risk and Legionella prevention through temperature control
- Updates backflow prevention device standards and installation methods
- Expands temperature-limiting protections for hot water outlets
- Establishes safety requirements for rooftop appliances and raised platforms
- Revises T&P valve discharge piping provisions for clarity and safety
- Introduces requirements for leak detection and monitoring technologies
- Enhances potable water pump installation and performance standards
- Adds DWV system updates for materials, cleanout access, and venting configurations
- Reorganizes medical and fuel gas system chapters for improved usability
Who It’s For:
Plumbing engineers, contractors, inspectors, and code officials enforcing compliant plumbing installations under the 2021 UPC framework.
UPC 1-2021 (IAPMO)
The 2021 Uniform Plumbing Code® (UPC), developed by IAPMO and approved through the ANSI consensus process, establishes minimum requirements for plumbing system design, installation, and inspection. It incorporates the latest safety, efficiency, and performance provisions used across residential, commercial, and industrial projects.
Highlights:
- Adds Appendix N for defining scald risk and Legionella prevention through temperature control
- Updates backflow prevention device standards and installation methods
- Expands temperature-limiting protections for hot water outlets
- Establishes safety requirements for rooftop appliances and raised platforms
- Revises T&P valve discharge piping provisions for clarity and safety
- Introduces requirements for leak detection and monitoring technologies
- Enhances potable water pump installation and performance standards
- Adds DWV system updates for materials, cleanout access, and venting configurations
- Reorganizes medical and fuel gas system chapters for improved usability
Who It’s For:
Plumbing engineers, contractors, inspectors, and code officials enforcing compliant plumbing installations under the 2021 UPC framework.
UPC 1-2021 (IAPMO)
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CSA C22.1:21 – Canadian Electrical Code, Part I (25th Edition), 2021
CSA C22.1:21 – Canadian Electrical Code, Part I (25th Edition), 2021 defines the national standard for the safe installation and maintenance of electrical equipment throughout Canada. This edition incorporates updated safety practices, supports emerging technologies, and aligns with evolving environmental and regulatory needs.
Highlights:
- Applies to all voltages and occupancies: residential, commercial, and industrial
- Expanded coverage of renewable energy, storage systems, EV charging, and hazardous locations
- Revised grounding, bonding, wiring methods, and overcurrent protection rules
- New climate resilience rules and guidance for livestock/agricultural buildings
- Refined equipment classifications, voltage references, and conductor ampacity updates
- Enhanced provisions for raceways, environmental protection, and installation practices
- Includes 80+ specialized sections (hospitals, cranes, marinas, airports, amusement parks)
- Appendices cover engineering interpretations, intrinsically safe circuits, and fire protection
Who It's For:
Electricians, engineers, code officials, and contractors operating under Canadian electrical safety regulations. Supersedes CSA C22.1-18.
CSA C22.1:21
CSA C22.1:21 – Canadian Electrical Code, Part I (25th Edition), 2021
CSA C22.1:21 – Canadian Electrical Code, Part I (25th Edition), 2021 defines the national standard for the safe installation and maintenance of electrical equipment throughout Canada. This edition incorporates updated safety practices, supports emerging technologies, and aligns with evolving environmental and regulatory needs.
Highlights:
- Applies to all voltages and occupancies: residential, commercial, and industrial
- Expanded coverage of renewable energy, storage systems, EV charging, and hazardous locations
- Revised grounding, bonding, wiring methods, and overcurrent protection rules
- New climate resilience rules and guidance for livestock/agricultural buildings
- Refined equipment classifications, voltage references, and conductor ampacity updates
- Enhanced provisions for raceways, environmental protection, and installation practices
- Includes 80+ specialized sections (hospitals, cranes, marinas, airports, amusement parks)
- Appendices cover engineering interpretations, intrinsically safe circuits, and fire protection
Who It's For:
Electricians, engineers, code officials, and contractors operating under Canadian electrical safety regulations. Supersedes CSA C22.1-18.
CSA C22.1:21
AWS D17.3/D17.3M:2016 – Specification for Friction Stir Welding of Aluminum Alloys for Aerospace Applications
AWS D17.3/D17.3M:2016 establishes general requirements for the friction stir welding (FSW) of aluminum alloys in aerospace applications. It provides standardized procedures for the design, fabrication, qualification, and inspection of aerospace components joined using the FSW process.
Highlights:
- Design requirements for FSW joints in aerospace structures
- Qualification procedures for welders, operators, and welding procedures
- Approved base metal specifications and usage limitations
- Tooling, fixture, and FSW equipment setup requirements
- Fabrication guidelines for welding parameters and process control
- Visual and mechanical inspection methods for weld quality verification
- Acceptance criteria for discontinuities, mechanical properties, and visual appearance
- Quality assurance provisions, documentation, and recordkeeping standards
New in the 2016 Edition:
- Updates to reflect advancements in friction stir welding techniques and aerospace material performance
- Enhanced inspection and qualification procedures for improved compliance and reliability
- Supersedes AWS D17.3/D17.3M:2010
Who’s It For:
Aerospace engineers, quality professionals, and fabricators involved in the production or qualification of aluminum structures using friction stir welding.
AWS D17.3/D17.3M-2016
AWS D17.3/D17.3M:2016 – Specification for Friction Stir Welding of Aluminum Alloys for Aerospace Applications
AWS D17.3/D17.3M:2016 establishes general requirements for the friction stir welding (FSW) of aluminum alloys in aerospace applications. It provides standardized procedures for the design, fabrication, qualification, and inspection of aerospace components joined using the FSW process.
Highlights:
- Design requirements for FSW joints in aerospace structures
- Qualification procedures for welders, operators, and welding procedures
- Approved base metal specifications and usage limitations
- Tooling, fixture, and FSW equipment setup requirements
- Fabrication guidelines for welding parameters and process control
- Visual and mechanical inspection methods for weld quality verification
- Acceptance criteria for discontinuities, mechanical properties, and visual appearance
- Quality assurance provisions, documentation, and recordkeeping standards
New in the 2016 Edition:
- Updates to reflect advancements in friction stir welding techniques and aerospace material performance
- Enhanced inspection and qualification procedures for improved compliance and reliability
- Supersedes AWS D17.3/D17.3M:2010
Who’s It For:
Aerospace engineers, quality professionals, and fabricators involved in the production or qualification of aluminum structures using friction stir welding.
AWS D17.3/D17.3M-2016
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