(a) In General. Tax applies to charges for producing, fabricating, processing, printing, or imprinting of tangible personal property for a consideration for consumers who furnish either directly or indirectly the materials used in the producing, fabricating, processing, printing or imprinting.

(b) Operations Included--Repairing and Reconditioning Distinguished. Producing, fabricating, and processing include any operation which results in the creation or production of tangible personal property or which is a step in a process or series of operations resulting in the creation or production of tangible personal property. The terms do not include operations which do not result in the creation or production of tangible personal property or which do not constitute a step in a process or series of operations resulting in the creation or production of tangible personal property, but which constitute merely the repair or reconditioning of tangible personal property to refit it for the use for which it was originally produced.

(c) Operations Included--Stretch Limousines. Producing, fabricating, and processing include any operation which results in the creation or production of a stretch limousine. The following rules apply in determining the measure of tax for converting a vehicle into a stretch limousine: