The Federal Government said yesterday that New York City public schools could continue grouping Youngsters by ability even if it led to racially imbalanced classes.

And in a related action, it withdrew a charge that the city’s three academically elite high schools discriminated against black and female students.

The Government actions, contained in an agreement with the Board of Education, resolve a complaint intitated by the Federal Office for Civil Rights in early 1977.The board is expected to make the agreement public today.

https://www.nytimes.com/1978/06/16/archives/grouping-by-ability-of-students-upheld-for-new-york-city-grouping.html