Hazardous waste means a solid waste, or combination of solid waste that, because of its quantity, concentration or physical, chemical or infectious characteristics may: Cause or significantly contribute to an increase in mortality or an increase in serious irreversible, or incapacitating reversible, illness; or Pose a substantial present or potential hazard to human health or the environment when improperly treated, stored, transported or disposed of, or otherwise managed.

Pathological wastes, Biological cultures and associated biologicals, Contaminated sharps, Infectious agent stock and associated biologicals, Blood and blood products in liquid or semiliquid form, Laboratory animal carcasses, body parts, and bedding.

If infectious waste is stored prior to final disposal, all persons shall store infectious waste in a secure area that: Is locked or otherwise secured to eliminate access by or exposure to the general public; and Affords protection from adverse environmental conditions and vermin; and Has a prominently displayed biohazard symbol. In addition: Stored in a manner that preserves the integrity of the container, and is not conducive to rapid microbial growth and putrefaction; and Disinfect reusable containers for infectious waste each time that they are emptied, unless the surfaces of the reusable containers have been protected from contamination by disposable liners, bags, or other devices that are removed with the infectious waste.