CAL FIRE (CDF)  is the largest fire department in California and the third largest fire department in the United States. Our firefighters protect 33 million acres of State Responsibility Area (SRA). However, from the Oregon border to the Otay Mountains in San Diego, CDF Firefighters are among the best-trained firefighters in the world. We have over 4,000 members within CDF Firefighters and we are also associated with the California Professional Firefighters (CPF) and the International Association of Firefighters (IAFF).