They are also called an intermediary. The decision made by an FI or a carrier under medicare part A or part B is called the local coverage determination (LCD).
The Lower Mantle, which is 49.2% of the Earth's mass.
Earth's mantle is made up of rock that is very hot, but solid. Scientists divide the mantle into layers based on the physical characteristics of those layers. Overall, the mantle is nearly 3,000 kilometers thick.