In employment law, a Loudermill letter is a letter that public-sector employers may send to employees giving notice of their intent to suspend, demote, or terminate.
According to Cleveland Bd. of Educ. v. Loudermill, the process that is due a public employee includes a pre-termination hearing that provides "oral or written notice of the charges against him, an explanation of the employer's evidence, and an opportunity to present his side of the story." The Loudermill letter fulfills the requirement of (written) notice, and should include an explanation of the employer's evidence ("to act as a check for mistaken accusations"). To fulfill the remaining Due Process requirements, a Loudermill letter will also have to inform the employee of his opportunity for a Loudermill hearing.