We all think where things should be located is a pretty simple, logical matter. Not so. Think about your local grocery store. LetÃ¢â‚¬â„¢s say you want to buy some meat; most of us would wander over to the meat counter. But, depending on whether the meat was fresh, frozen, canned, or cooked and packaged on request, there might be any number of places you go looking for your next meal.
Location also matters in federal agencies, particular those which evolve. Over time similar agencies develop based on different initial functions. A case in point is the National Weather Service, which is a part of the National Oceanic and Atmospheric Administration (NOAA) which itself is housed in the Department of Commerce.