Which of the following locations require GFCI protection?

GFCI (Ground Fault Circuit Interrupter) protection is essential in locations where water is present or where electrical equipment is used in damp conditions. This type of protection helps prevent electrical shocks by shutting off the circuit when it detects an imbalance between incoming and outgoing current.

Boathouses are generally exposed to moisture from water bodies, making them susceptible to ground faults. GFCI outlets in these areas ensure safety when using electrical devices, reducing the risk of shock.

Garages can also have damp conditions, particularly if they are used for washing vehicles or storing chemicals that may leak. Installing GFCI outlets in garages provides essential protection, especially since they often house power tools and equipment that may come into contact with water.

Crawlspaces are another area where moisture can accumulate. Electrical wiring and devices installed in these locations are at significant risk of exposure to ground faults. GFCI protection in crawlspaces helps safeguard against electrical shock incidents that may occur when working in or around these areas.

Therefore, since all listed locations—boathouses, garages, and crawlspaces—require GFCI protection to ensure electrical safety, the answer that encompasses this necessity is indeed all of these.