for Best Practices. It explores what clean air programs currently exist and how they are being financed. Rather than stating one best practice to tackling clean air, this report creates a table of the different programs, how they are being financed, and in what state. Governors and their staffs can then look for characteristics and solutions that are most realistic and applicable to their situation. The key is to tailor current practices that are in the world to the specific situation you are looking to solve. Best practices are meant to give insight into existing strategies. Environmental management The concept of best practice has been employed extensively in environmental management. For example, it has been employed in aquaculture such as recommending low-phosphorus feed ingredients, in forestry to manage riparian buffer zones, in livestock and pasture management to regulate stocking rates, and in particular, best management practices have been important to improving water quality relating to nonpoint source pollution of fertilizers in agriculture as well as the identification and adoption of best practice for controlling salinity. However, in the context of complex environmental problems such as dryland salinity, there are significant challenges in defining what is best in any given context. Best management practice for complex problems is context specific and often contested against a background of imperfect knowledge. In these contexts, it is more useful to think of best management practice as an adaptive learning process rather than a fixed set of rules or guidelines. This approach to best practice focuses on fostering improvements in quality and promoting continuous learning. Higher education STEM Program explanation is taken from Angela Baber's report to the NGA. The NGA has identified science, technology, engineering, and mathematics (STEM) as important skills that need to be developed in community colleges in order to create a strong workforce. Many states are creating or have created STEM Programs to address this issue. In order for these programs to work governors should: "Engage business to help ensure that community colleges meet regional STEM-skill needs Use community colleges to support new models of STEM education Reward community colleges and students for STEM course-completion Ensure that community colleges support more effective mathematics remediation Require that community college STEM credits and credentials are transferable." Health and human services The U.S. Preventive Services Task Force (USPSTF) makes evidence-based recommendations on clinical preventive services. The Task Force recommendations are based on systematic reviews