Maryland Tax - General Section 11-303

      (a)      A buyer is allowed a depreciation allowance as an adjustment to taxable price if:

            (1)      tangible personal property or a taxable service is acquired before the tangible personal property is brought into the State for use in the State or before the taxable service is used in the State; and

            (2)      the use first occurs in another state or federal jurisdiction.

      (b)      The allowance under subsection (a) of this section for each full year that follows the date of purchase is 10% of the taxable price paid to acquire the tangible personal property or taxable service.