(a) The taxes levied by this part shall be subject to all definitions, exemptions, proceedings, rules, regulations, requirements, fines, penalties, punishments, and deductions as are provided in the state sales tax law and the state use tax law, as amended, and all acts supplementary thereto, except where inapplicable or where herein otherwise provided, all of which are adopted and made a part hereof by reference, including the provisions for the enforcement and collection thereof. The tax levied herein shall be added to the sales price of property sold, and shall be collected from the purchaser, so that the impact of the tax shall be on the consumer rather than on the retailer.

(b) Exempted from this part are the gross proceeds of the sale of machines in Greene County used in mining, compounding, processing, and manufacturing of tangible personal property; provided, that the term machines, as herein used, shall include machinery which is used for mining, quarrying, compounding, processing, or manufacturing tangible personal property, and the parts of such machines, attachments, and replacements therefor, which are made or manufactured for use on or in the operation of such machines and are customarily so used.

(c) No excise tax may be imposed upon the storage, use, or other consumption in Greene County of any machine used in mining, quarrying, compounding, processing, and manufacturing of tangible personal property; provided that the term machines, as herein used, shall include machinery which is used for mining, quarrying, compounding, processing, or manufacturing tangible personal property, and the parts of such machine attachments and replacements therefor, which are made or manufactured for use on or in the operation of such machines and which are necessary to the operation of such machines and are customarily so used.

(d) The gross proceeds of sales of laboratory materials sold to licensed dentists and optometrists, when such materials are used in rendering professional service, and the storage, use, or consumption of such materials, shall also be exempted from the taxes levied or imposed under this part.