CPAverify minimizes the need to check the website of each State Board of Accountancy individually to determine a CPA's license status. CPAverify, with support from participating State Boards of Accountancy, allows consumers the opportunity to check the status of multiple licenses a professional holds at one website.
Generally, if the airspace is not Class A, B, C, or D, and is controlled airspace, then it is Class E airspace. Class E airspace extends upward from either the surface or a designated altitude to the overlying or adjacent controlled airspace.
CLASS C Airspace. Class C Airspace is the airspace from the surface to 4,000 feet above the airport elevation. Class C airspace will only be found at airports that have an operational control tower, are serviced by a radar approach control, and that have a certain number of IFR operations.