The Internal Revenue Service (IRS) establishes a tax ceiling on reimbursement for business travel by car. The IRS ordinarily updates the mileage rates once in each calendar year; however, on occasion a special adjustment has been made within the year due to changed costs.
Figure 10h-2: Structure of the Earth's crust and top most layer of the upper mantle. The lithosphere consists of the oceanic crust, continental crust, and uppermost mantle. Beneath the lithosphere is the asthenosphere. This layer, which is also part of the upper mantle, extends to a depth of about 200 kilometers.
The crust is part of the lithosphere. The lithosphere is composed of the crust plus the brittle uppermost layer of the mantle.Together, they form the tectonic plates which f â¦ loat on top of the plastic-like rock of the mantle called the asthenosphere.The difference is that the lithosphere is part of the Earth that  encompasses both the crust and the mantle â¦ below it. The crust is  the outermost layer of a planet, usually made up of rocky  materials.