In California, medical providers have the option to provide expedited partner therapy (EPT) for Chlamydia trachomatis and Neisseria gonorrhoeae. California law was amended in 2001 and 2007 to allow physicians to prescribe, and nurse practitioners, physician assistants, and certified nurse-midwives to dispense, antibiotic therapy for the sex partners of individuals infected with chlamydia and gonorrhea, even if they have not been able to perform an examination of the patient's partner(s).In collaboration with the California STD Controllers Association, the California Department of Public Health STD Control Branch developed clinical guidelines for EPT for chlamydia and gonorrhea. These guidelines are focused on EPT strategies and provide information on the most appropriate patients, medications, and counseling procedures recommended to maximize patient and public health benefit while minimizing risk to partners.