Category I - Includes tasks that involve exposure to blood, body fluids, or tissues. All procedures or other job-related tasks that involve an inherent potential for spills or splashes of, or mucous membrane or skin contact with blood, body fluids or tissues are Category I tasks. Use of appropriate protective measures is required for every employee engaged in Category I tasks.
Category II - Includes tasks that involve no exposure to blood, body fluids, or tissues, but employment may require performing unplanned Category I tasks. The normal work routine involves no exposure to blood, body fluids, or tissues by exposure or potential exposure may be required as a condition of employment. Appropriate protective measures will be readily available to every employee engaged in Category II tasks.
Category III - Includes tasks that involve no exposure to blood, body fluids, or tissues and Category I tasks are not a condition of employment. The normal work routine involves no exposure to blood; body fluids or tissues (although situations can be imagined or hypothesized under which anyone anywhere might encounter potential exposure to body fluids.) Persons who perform these duties are not called upon as part of their employment to perform or assist in emergency care or first aid or to be potentially exposed in some other way.