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.
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 The information provided therein is obsolete and is provided for reference only.
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