(1) As used in this chapter, the term "commercial supplier" means a person, firm or entity that regularly furnishes goods and supplies to the public or to a particular sector or industry. The term includes both retail and wholesale operations, but does not include a person, firm or entity that limits its sales or production output from any single source or place of operation for use solely in the performance of public works contracts.

(2) As used in this rule, the term "goods and supplies" means tangible items, materials or commodities that are produced or manufactured for use or incorporation in construction projects. The term includes both items that are produced or manufactured to a standard size, grade or dimension, as well as items that are specially manufactured or produced on a "to order" or "made to measure" basis.