Revision History for OFR 2023-1039 Jason S. Alexander, Jonathan P. O'Connell, and Jeb E. Brown Interim Guidance for Calibration Checks on a Submersible Acoustic Backscatter Sediment Sensor ----------------------------------------------------- Posted online May 1, 2023 ----------------------------------------------------- Revised and reposted November 27, 2023, version 1.1 The text version was modified. Table 2 was brought to the front so the elements were visible.