'Transmittal' in engineering refers to transmitting or sending technical drawings, specifications, and one person or entity to another. It is an essential part of the engineering design process and can be physical or digital. The transmittal typically includes a cover letter or transmittal form, often based on a company template, that explains the following:   - The purpose of the transmission  - The recipient  - The sender  - Any other relevant information  Therefore, transmittals ensure that all parties involved in the engineering project have access to the latest information and can communicate and collaborate effectively. We will discuss its benefits further in the following sections.