Okay, it's smart to get ahead of the 2023 NEC adoption! A few things stand out besides the island outlet rule you mentioned (210.52(C)(3))

Significant Changes to Residential Wiring in the 2023 NEC (Besides Island Outlets):
Arc-Fault Circuit Interrupter (AFCI) Protection (210.12)



Expansion of AFCI Protection

This is often the biggest change affecting residential jobs. Expect much wider areas requiring AFCI protection. Think:

All 120V, single-phase, 15A and 20A branch circuits supplying outlets, dwelling unit habitable rooms, kitchens, family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreation rooms, closets, hallways, laundry areas, or similar rooms or areas shall be protected by a listed AFCI. Basements, attics, and garages

This is a big one! AFCI protection is now required for outlets in these areas.

Exception for Fire Alarm Systems

An exception exists for fire alarm systems installed per 760.41(B) where AFCI protection would cause unwanted tripping.

Note

Be sure to understand the difference between AFCI breakers and outlets. The code generally mandates AFCI breakers for branch circuit protection.

Ground-Fault Circuit Interrupter (GFCI) Protection (210.8)



Expansion of GFCI Protection

GFCI requirements are getting even stricter and are expanding. Look closely at the specific language:

Basements, Garages, Accessory Buildings

All 125-volt through 250-volt receptacles installed in these locations.

Outdoors

All 125-volt through 250-volt receptacles outdoors. (This is generally already in place, but double-check for any subtle changes in wording).

Specific Appliances

Think about dishwashers and other dedicated appliance circuits – ensure you're complying with specific GFCI requirements in their respective articles.

Exception for appliances that are cord-and-plug connected and are not readily accessible (behind a refrigerator, etc.). Remember

You can use either a GFCI breaker or a GFCI receptacle to provide the required protection.

Surge Protection (230.67)



Required Surge Protection

Surge protection is now mandatory for dwelling units. Shall be installed at or before the service equipment.



Type 1 or Type 2 SPDs are required. A Type 1 SPD is designed for outside and inside use, and a Type 2 SPD is designed for installation on the load side of the service equipment. This will add cost to every new home.

Note

You'll need to be familiar with the performance requirements for these SPDs. Existing Homes: There's a section for surge protection at equipment replacement if the switchboard or panelboard is replaced, or if a new circuit is added for a large appliance.

Receptacle Outlet Placement (210.52)



Countertop Receptacles

Pay close attention to the rules for receptacle placement above countertops. Ensure that all countertops are served by at least one receptacle.

Peninsula Countertops

Peninsulas are treated similarly to island countertops (the rule you already know), so they need at least one receptacle, depending on the dimensions.

No point along the wall line is to be more than 24" from a receptacle.

Electric Vehicle Supply Equipment (EVSE) (625)

Even if the homeowner isn't immediately installing an EV charger, consider the future. It might be wise to run a conduit and appropriately sized wiring to a likely location for future EVSE. Check local amendments, as some jurisdictions are mandating EV-ready provisions in new construction.

Tamper-Resistant Receptacles (406.12)

Tamper-resistant receptacles are already widely required, but double-check for any minor tweaks in the wording. Make sure all 15- and 20-amp, 125-volt receptacles in dwelling units are tamper-resistant.

Tips for Transitioning to 2023 NEC



Training

As you mentioned, prioritize getting good training on the 2023 NEC changes. Look for courses specifically tailored to residential wiring.

Review the Code Book Carefully

Don't rely solely on summaries. Read the relevant sections of the 2023 NEC yourself. Pay attention to the fine print notes (FPNs) and exceptions.

Local Amendments

Your state or local jurisdiction may have amended the 2023 NEC. Be sure you're aware of any local variations. Check with your local electrical inspector/AHJ.

Talk to Your Suppliers

Discuss the 2023 NEC changes with your electrical suppliers. They can help you choose the correct products and understand the requirements.

Communicate with the Customer

Explain the changes to your customer before you start the work. Especially highlight the need for AFCI and GFCI protection, and the cost implications of surge protection. This will help avoid surprises later.

Documentation

Keep detailed records of your work, including the code sections you're complying with. This can be helpful if there are any questions later on.

Important Considerations for Pricing



Increased Material Costs

AFCI breakers, GFCIs, and surge protection devices will add to your material costs. Factor this into your pricing.

Increased Labor Time

The stricter requirements may increase the amount of time it takes to complete the wiring.

Risk Mitigation:* Accurate pricing will protect your profit margins and ensure you're not absorbing the costs of the increased code requirements.By being proactive and educating yourself on the 2023 NEC changes, you can ensure your residential projects are safe, code-compliant, and profitable. Good luck! Flag for review