Samuel Hernandez petitions for review of the final decision of the Railroad Retire *595 ment Board (Board) adopting the decision of the hearings officer that Hernandez’s February 2008 annuity adjustment was properly calculated. Hernandez has not pointed to any error in the Board’s adjustment calculation, and we find none. See Worms v. R.R. Ret. Bd., 255 F.3d 502, 505 (8th Cir. 2001) (Board’s decision will be upheld if it is supported by substantial evidence, is not arbitrary, and has reasonable basis in law). Hernandez’s arguments concerning earlier decisions and other issues are beyond the scope of our review. See 45 U.S.C. § 355(f) (claimant may seek review of final decision of Board after exhausting all administrative remedies within Board). Accordingly, we affirm.