Maryland Tax - General Section 8-402

      (a)      A franchise tax, measured by gross receipts, is imposed, for each calendar year, on each public service company:

            (1)      engaged in a telephone business in the State; or

            (2)      engaged in the transmission, distribution, or delivery of electricity or natural gas in the State.

      (b)      The tax imposed under subsection (a) of this section does not apply to a public service company that is:

            (1)      a county;

            (2)      a municipal corporation; or

            (3)      a nonprofit electric cooperative.