Except as set forth at §B of this regulation, the provider shall provide one toilet and one sink that are: Maintained in good operating condition and in a sanitary manner; Easily accessible to the children; and Equipped with water-resistant, nonabsorbent platforms which are safely constructed at a height that allows children to use the toilet and sink unassisted. For each group of children younger than 2 years old in a room, there shall be an approved diapering area with a sink that: Is used only for diapering and toileting purposes; and Permits continuous observation of, and immediate response to, each child in the group. Each toilet room shall have: A floor with a water-resistant, nonabsorbent finish; Smoothly finished walls with a hard surface; and Approved and functioning natural or mechanical ventilation. Portable toilets, also known as potty-chairs, may not be used. Each toilet room shall contain individual paper towels, a trash receptacle, soap, and toilet paper. All sanitary supplies in a toilet room shall be available within reach of a child capable of using the toilet unassisted. Toiletry and grooming articles, drinking cups, towels, face cloths, brushes, and combs may not be shared.