what must the federal government do for the states
States must also administer mandates set by the federal government. Generally these mandates contain rules which the states wouldn't normally carry out. For example, the federal government may require states to reduce air pollution, provide services for the handicapped, or require that public transportation must meet certain safety standards. The federal government is prohibited by law from setting unfunded mandates. In other words, the federal government must provide funding for programs it mandates. Grants. Grants are an important tool used by the federal government to provide program funding to state and local governments.