When size, weight, or other factors prevent sending an enclosure with a letter, send it separately and type "(sep cover)" after the enclosure's description. SAFD Form 6007 (Letter of Understanding), which may be obtained from the San Antonio Fire.You must follow all the directions in the enclosed instructions. The most common mistakes are the unauthorized changing of notice, wording, or font. This letter advises the University of Texas at San Antonio (UTSA) of the U.S. Department of. Quickly learn what a Letter of Instruction is and how to write one (2024 updated). Plus, grab the free template so you can take action! This application was generated using the PDF functionality. The PDF functionality automatically numbers the pages in this application. These service standards are intended to supplement the City of San Antonio.