Fulfill four important requirements all in one day! All licensed dental professional are required by the Dental Board of California to take an infection control class and a California Dental Practice Act biennially for license renewal. However, don't forget that Cal/OSHA has annual training requirements for personnel who work in an environment that have a risk of occupational exposure to bloodborne pathogens and/or hazardous chemicals. Cal/OSHA required all dental professionals to take an annual course in blood-borne pathogens training, plus an annual hazard communication training program