A Publication is an informational document that addresses a particular topic of interest to taxpayers. Subsequent changes in the law or regulations, judicial decisions, Tax Appeals Tribunal decisions, or changes in Department policies could affect the validity of the information contained in a publication. Publications are updated regularly and are accurate on the date issued. A Tax Bulletin is an informational document designed to provide general guidance in simplified language on a topic of interest to taxpayers. It is accurate as of the date issued. However, taxpayers should be aware that subsequent changes in the Tax Law or its interpretation may affect the accuracy of a Tax Bulletin.