The Central Massachusetts chapter of Trout Unlimited (chapter #148) was formerly known as the Greater Worcester chapter.  In 2008, the chapter merged with the Quaboag chapter to form the current Central Massachusetts chapter.  The chapter currently has approximately 300-350 members, and meets monthly at the Auburn Sportsman's Club located at 50 Elm St # A, Auburn, MA 01501.

CMTU chapter meetings run monthly from September through May with an annual fundraising banquet in late-Winter/early-Spring.

The CMTU chapter territory encompasses portions of several major Massachusetts river basins/watersheds, to include: Blackstone, Nashua, Assabet/Sudbury, Chicopee, French and Quinebaug.  Major Home Waters for the chapter include the Quinipoxet River, Stillwater River, Quaboag River, Hamant Brook and Wekepeke Brook.

CMTU is adjacent to six of the other local TU chapters in the MA/RI TU Council.  They are: Millers River, Squan-a-Tissit, Greater Boston, Sourtheast Mass, Pioneer Valley, and Northern Rhode Island.  CMTU routinely teams with these and other TU chapters on various conservation, youth education, fundraising, and fly fishing events.

The CMTU chapter publishes a monthly newsletter distributed online and via electronic mail.