If surgery is performed, appropriate facilities and equipment shall be provided and the operating area shall be run in accordance with accepted surgical practice. A suitably equipped area shall include the following equipment and supplies: An autoclave or other equipment for effective sterilization of instruments, linens, gloves, gowns, and similar items; A scrub sink or a suitable container for surgical preparation; An operating light or sufficient power to assure clear illumination of the operative field; Instruments and drapes appropriate for the surgical procedures used in the hospital; and A positive pressure oxygen delivery system for small animal patients where medically indicated.