The Ryan Haight Online Pharmacy Consumer Protection Act of 2008 regulates the online prescribing of controlled substances in the United States. This legislation, enforced by Drug Enforcement Administration (DEA), establishes guidelines for internet prescriptions and includes specific rules for prescribing controlled substances through telepsychiatry. According to the Act, any prescribing practitioner must first conduct an in-person medical evaluation with the patient before prescribing via telemedicine.