; (ii) ensuring a regular supply of food, water, and medical supplies; (iii) maintenance and upkeep of military installation facilities, grounds, and vehicles; or (iv) ensuring a regular supply of utilities (including water, electricity, and natural gas); or (B) any products or services not described under subparagraph (A) with respect to which the commander of a military installation determines that a gap in the availability of such products or services would disrupt normal operations of the military installation. (3) Small business The term small business has the meaning given the term small business concern under section 3 of the Small Business Act.