Various laws, including federal antidiscrimination laws and contract laws, impose restrictions on an employer's ability to terminate an employee. Many states have their own antidiscrimination laws that offer employees similar, if not broader, protections as the corresponding federal laws.
Click on a state on the map for the types of restrictions that by law may apply to limit an employer's ability to fire an employee in that state.
In addition, keep in mind that the state laws that govern the hiring process often apply to firing and termination as well. Be sure to check the employment laws in your state to avoid running afoul of rules that govern firing and termination and to take into account prohibitions.