Dear : This letter is in reference to your application of 6 November 2018 for correction of your naval record pursuant to Title 10, United States Code, Section 1552. After careful and conscientious consideration of the entire record, the Board for Correction of Naval Records (Board) found that the evidence submitted was insufficient to establish the existence of probable material error or injustice. Consequently, your application has been denied. A three-member panel of the Board, sitting in executive session, considered your application on 28 January 2020. The names and votes of the members of the panel will be furnished upon request. Your allegations of error and injustice were reviewed in accordance with administrative regulations and procedures applicable to the proceedings of this Board. Documentary material considered by the Board consisted of your application, together with all material submitted in support thereof, relevant portions of your naval record, as well as applicable statutes, regulations, and policies. The Board also considered the enclosed 26 July 2019 advisory opinion (AO) furnished by the Navy Personnel Command (PERS-328), which was previously provided to you. Although you were afforded an opportunity to submit a rebuttal, you did not do so. The Board carefully considered your request that you 44 month extension be removed from your official military personnel file, and for your expiration of active obligated service as extended (SEAOS) be returned to April 20l9. The Board considered your contention that your extension processed in response to NAVADMIN 307/17 was canceled because the time requested was over the amount of months that you are able to attain. The Board, however, substantially concurred with the AO and determined that the 44 months of aggregated extensions is correct. The Board thus concluded that your record properly reflects your extensions and SEAOS, and that it does not constitute probable material error or injustice warranting removal from your record. It is regretted that the circumstances of your case are such that favorable action cannot be taken. You are entitled to have the Board reconsider its decision upon the submission of new matters, which will require that you complete and submit a new DD Form 149. New matters are those not previously presented to or considered by the Board. In this regard, it is important to keep in mind that a presumption of regularity attaches to all official records. Consequently, when applying for a correction of an official naval record, the burden is on the applicant to demonstrate the existence of probable material error or injustice.