Racial diversity in public schools is an important goal, but so far it has been elusive because of housing patterns. Greenwich Public Schools are a reminder why ("Law on Racial Diversity Stirs Greenwich Schools," The New York Times, Jul. 20). At issue is a Connecticut law passed in 1969 that forbids school districts from allowing any of their schools to deviate more than 25 percent in racial composition from any of their other schools. In Greenwich, two public elementary schools violate the law.

This situation, however, is not the fault of school officials. In fact, they have done almost all they can to avoid it. I made this point in a letter to the editor ("Racial Diversity in the Greenwich Public Schools," The New York Times, Jul. 27). Last year, for example, they implemented a policy that requires parents or guardians registering their child to complete notarized affidavits testifying to their address. Lying could result in criminal prosecution. Moreover, Greenwich schools are among the top performing districts in the state, with the achievement gap between blacks and whites in reading dropping to 27.4 percentage points in the 2011-12 school year from 32 points five years earlier. For whites and Hispanics, the gap fell to 21.7 percentage points from nearly 30 points in the same period.

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