With this Office of Inspector General's (OIG's) second diversity, equity, inclusion, and accessibility (DEIA) strategic plan, readers will see, for FYs 2023-2028, DEIA efforts will continue to focus on their people, their workplaces, and their products and services. OIG will invest in their people by committing to comprehensive human capital strategies to attract, develop, and retain a diverse and skilled workforce. They will take actions to ensure that their workplaces are accessible, inclusive, and harassment-free environments where OIG staff can be their authentic selves and thrive. And they will add a DEIA focus to their work when possible and will be sure that all of their products and services are accessible to all. This report starts by presenting the goals for DEIA at the OIG for FYs 2023-2028, and the key strategies OIG will employ to reach them. These strategies provide a framework for the activities that they will perform to achieve their goals. Their plan also includes information on how they will evaluate their efforts and provides examples of the action items that they will use to assess how well they are achieving their desired objectives. They will detail all performance measures and share their progress related thereto in their annual progress reports. The Plan concludes with sections on accountability and transparency and DEIA at the OIG. [For the first diversity, equity, inclusion, and accessibility strategic plan (2019), see ED620721.]