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Mail Classification Schedule (MCS)

The Mail Classification Schedule describes every product offered to the public by the US Postal Service and serves as a standard reference work when reviewing ongoing postal products. A draft working copy of the Mail Classification Schedule is available below. It is typically updated on a weekly basis in redline legislative format to represent the most current US Postal Service product offerings.

DOC Document MCSRedline11252014

On an annual basis, the Mail Classification Schedule in redline legislative format is retired to the archive appearing below. All redline legislative changes are incorporate into a new baseline Mail Classification Schedule and posted in this section for legislative markup in the following year.


Archive copies of historical version of the Mail Classification Schedule are available below. The information provided therein is obsolete and is provided for reference only.

DOC Document MCSRedline10012014

DOC Document MCSRedline08292014

DOC Document MCSRedline07312014

DOC Document MCSRedline05302014

DOC Document MCSRedline04302014

DOC Document MCSRedline03312014

DOC Document MCSBaseline01272014

DOC Document MCSRedline12052013

DOC Document MCSBaseline04012013


A historical copy of the Domestic Mail Classification Schedule is available below. The Domestic Mail Classification Schedule is the predecessor to the Mail Classification Schedule. It governed rates and classifications of domestic postal products prior to enactment of the Postal Accountability and Enhancement Act (PAEA), Pub. L. 109-435, 120 Stat. 3198, December 20, 2006.

Domestic Mail Classification Schedule