A Transmittal Letter is a type of cover letter. The letter conveys to the recipient the purpose and context of the communication, which is typically an attached report or document. Sent in hardcopy or as email, the transmittal letter also provides the sender with a permanent record of having sent the material. The transmittal letter itself is usually a brief communication (no longer than a page). The letter usually features four paragraphs describing the following four elements: (1) The purpose of the Letter and a brief description of the project, (2) the roles of members involved, (3) an acknowledgment of any assistance from other parties, and (4) some closing remarks.
Example Transmittal Letters
“Fast Lane to a Hydrogen Age” by team “Yellow Lambo”