Global public health surveillance is critical for the identification and prevention of emerging and reemerging infectious diseases. The World Health Organization recently released revised International Health Regulations (IHR) that serve as global legislation and provide guidelines for surveillance systems. The IHR aim to identify and prevent spread of these infectious diseases; however, there are some practical challenges that limit the usability of these regulations. IHR requires Member States to build necessary infrastructure for global surveillance, which may not be possible in underdeveloped countries. A large degree of freedom is given to each individual government and therefore different levels of reporting are common, with substantial emphasis on passive reporting. The IHR need to be enforceable and enforced without impinging on government autonomy or human rights. Unstable governments and developing countries require increased assistance in setting up and maintaining surveillance systems. This article addresses some challenges and potential solutions to the ability of national governments to adhere to the global health surveillance requirements detailed in the IHR. The authors review some practical challenges such as inadequate surveillance and reporting infrastructure, and legal enforcement and maintenance of individual human rights. (Disaster Med Public Health Preparedness. 2007;1:117–121)