Oct. 1921 to present.
Monthly reports on the pros and cons, background and verbatim arguments of legislation before Congress, each issue dealing with one law under consideration. A
cumulative index (pdf) of all topics from 1921 to 2010 is available online.
AU Library also has microform of the Congressional Digest from 1989-present on site and print volumes from 1951-2011 in storage
see catalog record.