After completing this Washington course, the participant will be able to apply the 100 most important changes from the first half of the 2023 National Electrical Code in common wiring practice.

Learning Objectives:

  • Describe the overall layout of the National Electrical Code and the addition of new articles.
  • Identify the scope of what is covered and not covered in the Code.
  • List which chapters can supplement or modify other chapters.
  • Identify updates, additions, and changes to Chapter 1 of the 2023 National Electrical Code.
  • Describe changes in the way terms are presented in Article 100, Definitions.
  • Define 12 terms that are newly defined in the 2023 NEC.
  • Outline changes to the general requirements for electrical installations found in Chapter 110 of the 2023 NEC.
  • Identify updates, additions, and changes to Chapter 2 of the 2023 National Electrical Code.
  • Describe changes for branch circuits found in Chapter 2 of the 2023 NEC.
  • Identify changes to branch-circuit requirements as summarized in Tables 210.24(1) and 210.24(2).
  • Outline new requirements covering barriers and surge protection for feeders found in Chapter 2 of the 2023 NEC.
  • Identify changes to branch-circuit, feeder, and service load calculations found in Chapter 2 of the 2023 NEC.
  • List new requirements in Chapter 2 of the 2023 NEC for health care facilities, electric vehicle charging stations, marinas, and docking facilities.
  • Identify the changes to minimum unit load requirements for dwelling units and lighting loads for non-dwelling occupancies found in Chapter 2 of the 2023 NEC.
  • Describe changes to emergency disconnects and surge protection for outside branch circuits and feeders found in Chapter 2 of the 2023 NEC.
  • Outline the new wiring method for installing underground service conductors.
  • List the locations that must be provided with surge protection devices.
  • Identify changes for service conductors and service installation requirements found in Chapter 2 of the 2023 NEC.
  • Outline the new declaration regarding standard overcurrent device ratings found in Chapter 2 of the 2023 NEC.
  • Identify changes to the standard ampere ratings in Table 240.6(A).
  • Describe the new requirement that surge protection devices indicate they are functioning properly.
  • Summarize the new requirements for overcurrent protection requirements for systems over 1000 volts ac, 1500 volts dc in Article 245.
  • Identify the new requirements for grounding and bonding in Chapter 2 of the 2023 NEC.
  • Identify updates, additions, and changes to Chapter 3 of the 2023 National Electrical Code.
  • Summarize the general requirements for wiring methods and materials for systems rated over 1000 volts ac, 1500 volts dc covered in Article 305.
  • Describe changes and additions to the exceptions for cables, raceways, or boxes installed in or under metal-corrugated roof decking found in Chapter 3 of the 2023 NEC.
  • Outline new requirements for installing screws and other fasteners in cabinets, cutout boxes, and meter socket enclosures found in Chapter 3 of the 2023 NEC.
  • Identify additions and changes to requirements for outlet boxes, underground boxes, and handhole enclosures found in Chapter 3 of the 2023 NEC.
  • Outline new requirements for insulated bus pipe and flexible bus systems found in Chapter 3 of the 2023 NEC.
  • List changes to uses permitted and not permitted for nonmetallic-sheathed cable.
  • Identify changed requirements for use and installation of rigid polyvinyl chloride conduit (PVC) found in Chapter 3 of the 2023 NEC.
  • Identify updates, additions, and changes to Chapter 4 of the 2023 National Electrical Code.
  • Describe the change in scope to Chapter 4 of the 2023 NEC.
  • Identify changes and additions to req...

Course ID(s): WA2025-430

Approved By: Department of Labor & Industries - Electrical Program

  • 2023 NEC Changes Part 1
    • Chapter 1 [22 Activities]
      • 01. 100. Definitions. Scope.
      • 02. 100 Definitions. Attachment Fitting, Weight-Supporting (WSAF). & Receptacle, Weight-Supporting Ceiling (WSCR).
      • 03. 100 Definitions. Class 4 Circuit, Class 4 Device, Class 4 Power System, Class 4 Receiver, Class 4 Transmitter, Class 4 Utilization Equipment.
      • 04. 100 Definitions. Cord Connector.
      • 05. 100 Definitions. Counter (Countertop)
      • 06. 100 Definitions. Ground Fault Circuit Interrupter, Special Purpose.
      • 07. 100. Definitions. Ground-Fault Detector-Interrupter, dc (GFDI)
      • 08. 100 Grounding Conductor, Impedance.
      • Additional Activities
        • 09. 100 Definitions. Grounded System, Impedance.
        • 10. 100 Definitions. Panelboard, Enclosed. (Enclosed Panelboard)
        • 11. 100 Definitions. Restricted Industrial Establishment.
        • 12. 100 Definitions. Stored-Energy Power Supply System (SEPSS).
        • 13. 100 Definitions. Work Surface.
        • 14. 110.3(A)(8). Examination. Cybersecurity.
        • 15. 110.3(B) 110.3(B) Installation and Use.
        • 16. 110.16(B) Service Equipment and Feeder Supplied Equipment.
        • 17. 110.17. Servicing and Maintenance of Equipment.
        • 18. 110.20 Reconditioned Equipment.
        • 19. 110.26 Spaces About Electrical Equipment.
        • 20. 110.26(A)(6) Grade, Floor, or Working Platform.
        • 21. 110.29 In Sight From (Within Sight From, Within Sight)
        • 22. 110.33(A) Entrance to Enclosures and Access to Working Space. Entrance.
    • Chapter 2 [53 Activities]
      • 01. Article 210, Branch Circuits Not Over 1000 Volts ac, 1500 Volts dc, Nominal.
      • 02. 210.2 Reconditioned Equipment
      • 03. 210.5(C)(1) Branch Circuits Supplied from More than One Nominal Voltage System.
      • 04. 210.8(A)(5) GFCI Protection for Personnel. Dwelling Units. Basements
      • 05. 210.8(A)(6) GFCI Protection for Personnel. Dwelling Units. Kitchens
      • 06. 210.8(A)(7) GFCI Protection for Personnel. Dwelling Units. Areas with Sinks
      • 07. 210.8(B). GFCI Protection for Personnel. Other Than Dwelling Units.
      • 08. 210.8(B) GFCI Protection for Personnel. Other Than Dwelling Units. Exceptions.
      • Additional Activities
        • 09. 210.8(D) GFCI Protection for Personnel. Specific Appliances.
        • 10. 210.8(F) GFCI Protection for Personnel. Outdoor Outlets
        • 11. 210.11(C)(4) Dwelling Units. Garage Branch Circuits.
        • 12. 210.12 Arc-Fault Circuit-Interrupter Protection
        • 13. 210.17 Guest Rooms and Guest Suites.
        • 14. 210.18. Branch-Circuit Ratings. Rating
        • 15. 210.23 Permissible Loads, Multiple-Outlet Branch Circuits.
        • 16. Table 210.24(1) Summary of Branch-Circuit Requirements - Copper Conductors.
        • 17. 210.52(A)(2). General Provisions. Wall Space.
        • 18. 210.52(C)(1). Countertops & Work Surfaces. Wall Spaces.
        • 19. 210.52(C)(2). Countertops & Work Surfaces. Island and Peninsular Countertops and Work Surfaces.
        • 20. 210.52(C)(3) Receptacle Outlet Location.
        • 21. 210.52(D) Bathrooms
        • 22. 210.70 Lighting Outlets Required.
        • 23. 210.70(A)(1) Dwelling Units. Habitable Rooms, Kitchens, Laundry Areas, and Bathrooms. Additional Locations
        • 24. 215.15 Barriers.
        • 25. 215.18 Surge Protection.
        • 26. 220.41 Dwelling Unit(s). Minimum Unit Load.
        • 27. 220.42 Lighting Load for Non-Dwelling Occupancies.
        • 28. 220.57 Electric Vehicle Supply Equipment (EVSE) Load.
        • 29. 220.110 Health Care Facilities. Receptacle Loads.
        • 30. 220.120 Marinas. Receptacle Loads.
        • 31. Article 225, Outside Branch Circuits and Feeders.
        • 32. 225.41 Emergency Disconnects
        • 33. 225.42. Surge Protection.
        • 34. 230.7 Other Conductors.
        • 35. 230.24(A) Clearances. Above Roofs.
        • 36. 230.30(B) Wiring Methods.
        • 37. 230.62(C) Barriers.
        • 38. 230.67. Surge Protection.
        • 39. 230.71(B) Two to Six Service Disconnecting Means.
        • 40. 230.85 Emergency Disconnects
        • 41. Article 235, Branch Circuits, Feeders, and Services Over 1000 Volts ac, 1500 Volts dc, Nominal.
        • 42. 240.4(B) Overcurrent Devices Rated 800 Amperes or Less
        • 43. 240.6(A) Standard Ampere Ratings for Fuses and Inverse Time Circuit Breakers
        • 44. 242.9. Indicating
        • 45. Article 245, Overcurrent Protection for Systems Rated Over 1000 Volts ac, 1500 volts dc.
        • 46. 250.64(G) Enclosures with Ventilation Openings.
        • 47. 250.68(C) Grounding Electrode Conductor Connections.
        • 48. 250.118 Types of Equipment Grounding Conductors.
        • 49. 250.130 Equipment Grounding Conductor Connections.
        • 50. 250.130(C) Replacement of Nongrounding Receptacle or Snap Switch and Branch Circuit Extensions.
        • 51. 250.140 Frames of Ranges and Clothes Dryers.
        • 52. 250.148 Continuity of Equipment Grounding Conductors and Attachment in Boxes.
        • 53. 250.186 Grounding Service-Supplied Alternating-Current Systems.
    • Chapter 3 [15 Activities]
      • 01. 300.4(E) Cables, Raceways, or Boxes Installed in or Under Metal-Corrugated Roof Decking.
      • 02. Table 300.5(A) Minimum Cover Requirements, 0 to 1000 Volts ac, 1500 Volts dc, Nominal.
      • 03. Article 305, General Requirements for Wiring Methods and Materials for Systems Rated Over 1000 volts ac, 1500 volts dc, Nominal.
      • 04. 310.15(B)(2). Rooftop.
      • 05. 312.10 Screws or Other Fasteners.
      • 06. 314.27(E) Weight-Supporting Ceiling Receptacles (WSCR) and Weight-Supporting Attachment Fittings (WSAF).
      • 07. 314.29(B) Underground.
      • 08. 334.10 Uses Permitted.
      • Additional Activities
        • 09. 334.15(B) Protection from Physical Damage.
        • 10. 334.40(B) Boxes and Fittings. Devices of Insulating Material.
        • 11. 344.28 Reaming and Threading.
        • 12. 352.10 Uses Permitted.
        • 13. 352.44 Expansion Fittings.
        • 14. Article 369, Insulated Bus Pipe (IBP)/Tubular Covered Conductors (TCC) Systems.
        • 15. Article 371, Flexible Bus Systems.
    • Chapter 4 [10 Activities]
      • 01. 404.1 Switches. Scope.
      • 02. 404.2(C) Switches Controlling Lighting Loads.
      • 03. 404.14(D) Snap Switch Terminations.
      • 04. 404.16 Reconditioned Equipment
      • 05. 404.30 Switch Enclosures with Doors.
      • 06. 406.3(D) Receptacle Terminations.
      • 07. 406.4(G). Protection of Floor Receptacles.
      • 08. 406.6(D) Receptacle Faceplate (Cover Plates) with Integral Night Light and/or USB Charger.
      • 09. 406.9(A),(B) Damp Locations, Wet Locations.
      • 10. 406.9(C) Bathtub and Shower Space.
  • Course Completion
    • Mandatory Questionnaire
    • Certificate of Completion
    • Guaranteed Next Business Day Reporting
Instructor Image

Instructor Bio

Jerry Durham

Jerry previously served the state of North Carolina as a Level III electrical inspector and provided state-approved electrical training for electrical inspectors at both Alamance County and Guilford County (NC) Community Colleges. Jerry taught the Kentucky state-approved four-year electrical apprenticeship programs offered by the Independent Electrical Contractors (IEC) Trade School and Associated Builders and Contractors (ABC) Trade School, and served the state of Kentucky as a Master Electrician and Louisville Metro Code Enforcement Officer. Jerry is a Certified Distance Education Instructor (CDEI) and NCCER Core and Electrical Curriculum certified instructor. Jerry currently holds North Carolina and ICC electrical inspector accreditations and is recognized by the state of Washington as an approved electrical administrator.