What type of electrical outlet is required within six feet of any water source?

An electrical outlet within six feet of any water source is required to be a Ground Fault Circuit Interrupter (GFCI) outlet. GFCI outlets are designed to protect against electrical shock by quickly shutting off power if they detect an imbalance in electrical current. These outlets are commonly used in areas like bathrooms, kitchens, and outdoors where water may be present.