the requirement for GFCI (Ground Fault Circuit Interrupter) protection on 4-wire dryer circuits may vary depending on the local electrical codes and regulations. Generally, GFCI protection is commonly required for circuits in areas where there is a greater risk of electrical shock, such as bathrooms, kitchens, or outdoor locations.
However, specific regulations can differ between jurisdictions, and it is always best to consult the most recent edition of the National Electrical Code (NEC) or the applicable local electrical code for accurate and up-to-date information. Additionally, local building departments or qualified electricians should be able to provide guidance on the specific requirements in your area.
Since my knowledge is not up to date, I recommend checking the current electrical codes or consulting with a licensed electrician to determine the specific requirements for GFCI protection on 4-wire dryer circuits in your location.