This document summarizes the procedures governing the use of the Parliament Acts of 1911 and 1949. These Acts restrict the powers of the House of Lords in relation to money bills and other public bills passed by the House of Commons. For money bills, the Lords cannot delay passage for more than one month. For other public bills, if the Lords rejects the same bill in two successive sessions of Parliament at least one year apart, the bill can be presented for royal assent without the Lords' approval. The document provides examples of bills that have been passed using these procedures and discusses legal challenges to the validity of the Parliament Acts.