For more than 100 years, Bakersfield has been important to California’s transportation and agriculture. This city at the southernmost end of the San Joaquin Valley takes uses business licensing not only to generate important revenues, but to prevent vice crimes. Additionally, Kern County requires licensing for food, childcare, hazardous waste and other businesses that impact public safety. Kern County is the most oil productive county in America, generating approximately 10% of the nation’s domestic production. It also ranks in the top five most productive agricultural counties in the nation yeilding grapes, citrus, almonds, carrots, alfalfa, cotton, and roses. Bakersfield's local industry includes businesses that make ice cream, central vacuums, highway paint, and stock racing cars.