6 chapters and 106 sections in 1926 to over 160 chapters and 7,000 sections as of 1999. Titles Titles that have been enacted into positive law are indicated by blue shading below with the year of last enactment. Proposed titles The Office of Law Revision Counsel (LRC) has produced draft text for three additional titles of federal law. The subject matter of these proposed titles exists today in one or several existing titles. The LRC announced an "editorial reclassification" of the federal laws governing voting and elections that went into effect on September 1, 2014. This reclassification involved moving various laws previously classified in Titles 2 and 42 into a new Title 52, which has not been enacted into positive law. Treatment of repealed laws When sections are repealed, their text is deleted and replaced by a note summarizing what used to be there. This is so that lawyers reading old cases can understand what the cases are talking about. As a result, some portions of the Code consist entirely of empty chapters full of historical notes. For example, Title 8, Chapter 7 is labeled "Exclusion of Chinese". This contains historical notes relating to the Chinese Exclusion Act, which is no longer in effect. Number and growth of federal crimes There are conflicting opinions on the number of federal crimes, but many have argued that there has been explosive growth and it has become overwhelming. In 1982, the U.S. Department of Justice could not come up with a number, but estimated 3,000 crimes in the United States Code. In 1998, the American Bar Association said that it was likely much higher than 3,000, but did not give a specific estimate. In 2008, the Heritage Foundation published a report that put the number at a minimum of 4,450. When staff for a task force of the U.S. House Judiciary Committee asked the Congressional Research Service (CRS) to update its 2008 calculation of criminal offenses in the USC in 2013, the CRS responded that they lack the manpower and resources to accomplish the task. Related codifications The Code generally contains only those Acts of Congress, or statutes, designated as public laws. The Code itself does not include Executive Orders or other executive-branch documents related to the statutes, or rules promulgated by the courts. However, such related material is sometimes contained in notes to relevant statutory sections or in appendices. The Code does