The **Office of Special Education and Rehabilitative Services (OSERS)** is a key division within the U.S. Department of Education, established on October 17, 1979, with a mission to lead efforts ensuring full integration and participation of people with disabilities in society through equal access to education, employment, and community life[1][3]. OSERS originated when Congress split the Department of Health, Education, and Welfare, transforming the Bureau of Education for the Handicapped (created in 1967) into OSERS, which includes the Rehabilitation Services Administration (RSA) and the National Institute of Disability and Rehabilitation Research[1]. OSERS administers critical programs in three main areas: special education, vocational rehabilitation, and research. It oversees the implementation of the Individuals with Disabilities Education Act (IDEA), which guarantees free and appropriate public education for approximately 7 million children and youth with disabilities aged birth through 21 years[5][8]. Through its Office of Special Education Programs (OSEP), OSERS provides formula and discretionary grants to states, educational institutions, and non-profits to support services, research, technology development, and parent training[5]. The Rehabilitation Services Administration further supports vocational rehabilitation and independent living programs for individuals with disabilities[8]. In fiscal year 2024, OSERS ranked third in net spending within the Department of Education, with expenditures exceeding $20 billion, reflecting significant federal investment in disability education and rehabilitation over time[3]. Headquartered in Washington, D.C., OSERS functions as the principal advisor to the Secretary of Education on disability-related matters, shaping policies and ensuring compliance with federal laws[1][4]. Notably, OSERS plays a vital role in advancing educational equity and employment opportunities for people with disabilities by fostering collaboration among families, states, and school districts. Its continuous efforts contribute to technological innovations and evidence-based practices, making it a cornerstone institution at the intersection of education, rehabilitation, and social inclusion in the U.S.[8].