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Mental Retardation and Developmental Disabilities (MRDD or MR/DD) refers to services designed to assist mentally and developmentally challenged people and their families. In the United States, this term is used by state and local government agencies that receive federal funding under Title XIX of the Social Security Act of 1965.


In 1967, the Ohio Senate passed Amended S.B. 169, which delegated MRDD responsibilities to county "boards of MRDD".[1] These boards operate schools for special needs children and "adult centers", as well as vocational services for adults. In October 2009, Governor Ted Strickland signed a law that dropped "mental retardation" from the names of Ohio's 88 county boards.[2]


  1. ^ "The History of MR/DD". Cincinnati, Ohio: Hamilton County Developmental Disabilities Services. Retrieved 2009-12-14. 
  2. ^ "MRDD erases 'R Word' from official title". JournalNews. Hamilton, Ohio. 2009-07-09. Retrieved 2009-12-14. 

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