(a) Subject to subsection (b) of this section, the governing body of Dorchester County may reduce, by law, the percent of the assessment of personal property other than operating personal property of a public utility.
(b) If the governing body of the county enacts a law reducing the assessment of personal property, personal property other than operating personal property of a public utility is subject to county property tax on:
(1) 90% of its value for the first taxable year beginning after enactment of the law;
(2) 80% of its value for the second taxable year beginning after enactment of the law;
(3) 70% of its value for the third taxable year beginning after enactment of the law;
(4) 60% of its value for the fourth taxable year beginning after enactment of the law;
(5) 50% of its value for the fifth taxable year beginning after enactment of the law;
(6) 40% of its value for the sixth taxable year beginning after enactment of the law;
(7) 30% of its value for the seventh taxable year beginning after enactment of the law;
(8) 20% of its value for the eighth taxable year beginning after enactment of the law;
(9) 10% of its value for the ninth taxable year beginning after enactment of the law; and
(10) 0% of its value for the tenth taxable year beginning after enactment of the law and for each taxable year thereafter.