The chromium fixes the copper and arsenic to the wood. CCA can be separated into Type A, B, or C depending upon the relative proportions of metals (table I-1). The relative proportions range from 35-65%, 16-45%, 18-20% for chromium, arsenic, and copper, respectively.
The Civil Rights Act of 1964 ended racial segregation and outlawed most forms of discrimination in the workplace, schools, public facilities and separate requirements based on racialized distinctions, such as discriminatory voter registration requirements. The Civil Rights Act also clarified some of the rights of women.
Generally, the remaining Jim Crow laws were overruled by the Civil Rights Act of 1964 and the Voting Rights Act of 1965, but years of action and court challenges were needed to unravel numerous means of institutional discrimination.im Crow laws mandated the segregation of public schools, public places, and public transportation, and the segregation of restrooms, restaurants, and drinking fountains for whites and blacks.