Despite not typically being used in official context, "mental retardation" was still written in many of the United States' laws and documents until October 5, 2010, when U.S. President Barack Obama signed into effect S. 2781, also known as Rosa's Law.[12] The bill changed references in federal law; the term mental retardation was replaced by mental disability. Additionally, the phrase "mentally retarded individual" was replaced with "an individual with an intellectual disability" https://en.m.wikipedia.org/wiki/Retard_(pejorative)
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Despite not typically being used in official context, "mental retardation" was still written in many of the United States' laws and documents until October 5, 2010, when U.S. President Barack Obama signed into effect S. 2781, also known as Rosa's Law.[12] The bill changed references in federal law; the term mental retardation was replaced by mental disability. Additionally, the phrase "mentally retarded individual" was replaced with "an individual with an intellectual disability"
https://en.m.wikipedia.org/wiki/Retard_(pejorative)