Most codes now require kitchens, Bathrooms, outside/exterior which garages are sometimes consider if they aren't heated - places were your likely to encounter water. GF can be located outside, in the garage, on the actual plugs, or on the circuit breakers. Sometime they can be a little tricky to find. My neighbor's outside light post wouldn't work, I told him it was GFCI he couldn't find it. Went over and it was on a plug at the rear of the house.