4A [Reserved]
4B Agricultural Research Service.
4C Farm Service Agency.
4D Rural Development (mission area).
4E Food Safety and Inspection Service.
4F [Reserved]
4G Forest Service.
4H [Reserved]
4I Natural Resources Conservation Service.
4J [Reserved]
4K Food and Nutrition Service.
4L Animal and Plant Health Inspection Service.
4M [Reserved]
4N Departmental Administration.
4O-4P [Reserved]
4R Office of Inspector General.
4S [Reserved]
48 C.F.R. §401.301