This bill, known as the "Stop Chinese Fentanyl Act of 2025," seeks to combat the flow of synthetic opioids and their precursors from China by strengthening sanctions against those involved. It significantly expands the definition of a foreign opioid trafficker under the Fentanyl Sanctions Act to specifically include entities of the People's Republic of China that produce or distribute these substances and fail to take credible steps to prevent trafficking. The bill also targets senior Chinese government officials with regulatory or law enforcement responsibilities who aid or abet opioid trafficking through action or intentional inaction. To enhance accountability, the legislation mandates that the President consider specific Chinese officials, such as the heads of the National Narcotics Control Commission and the Ministry of Public Security, for identification as foreign opioid traffickers. Furthermore, it amends the International Emergency Economic Powers Act (IEEPA) to require annual evaluations of the effectiveness of emergency authorities exercised in response to international drug trafficking. These evaluations must assess efficacy, consider stakeholder views, and propose potential changes to better resolve the emergency. When issuing regulations under IEEPA for such emergencies, the President must also consider costs and benefits, establish termination criteria, and explain how the regulations will resolve the national emergency. Notably, the bill explicitly states that its sanctions authority does not extend to the importation of goods.