D.C. State Superintendent of Education Hanseul Kang will step down next month to join the Yale School of Management.

Kang, who was appointed by D.C. Mayor Muriel Bowser in March 2015, will leave on Oct. 16 to serve as the executive director of the Broad Center at Yale, according to a press release.

“D.C. has continued to serve as a proof point for the nation of what is possible,” Kang said in the release. “I am so proud of everything we have achieved together.”

The Office of the State Superintendent of Education oversees federal programs and grants in D.C. schools and administers the annual Partnership for Assessment of Readiness for College and Careers (PARCC) exams, which assess students’ academic achievement.

Under Kang, the city introduced a new school rating system in 2018 that helps the city direct more money to schools in need. Campuses are rated from one to five stars.

City education officials developed the rating system after the 2015 Every Student Succeeds Act mandated that states and the District create uniform and easily accessible report cards for schools.

Kang’s office also oversaw the expansion of pre-K learning in D.C. traditional public and charter schools, as well as community organizations.

Bowser said the superintendent has provided high-quality programs for students and teachers.

“Because of the strong foundation she has built at OSSE, our city is better prepared to support and advance excellence and equity in our education system, even during these challenging times,” Bowser said in the release.

The city said it will conduct a national search for Kang’s replacement.