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. This letter is to provide you and the Office of Special Education Programs (OSEP) in the United.Add an enclosure notation after your signature at the end of the letter, and abbreviate it with "Enc." or "Encl. Enclosure Line—The enclosure notation refers to the résumé. Introductory Paragraph. "(Personalized Seal)" in the following examples means a seal containing the words "Notary Public, State of Texas" around a star of five points, the notary. Add an enclosure notation after your signature at the end of the letter, and abbreviate it with "Enc." or "Encl. STPNOC's response to the request for additional information is provided in the Enclosure to this letter. There are no regulatory commitments in this letter. IRB staff will verify COI review is complete prior to issuing an exempt determination letter.