After 17 years at the helm of the National Association of College Stores in Oberlin, Ohio, CEO Brian E. Cartier, announced that he will retire effective June 30, 2016.

As CEO, Cartier oversees day-to-day operations, finances, and management of the 225-person NACS staff and its four subsidiaries: NACSCORP, a national wholesale distributor and retail services provider; PartnerShip, a shipping solutions provider for small and medium-sized businesses; indiCo, a service and solution provider for independent college stores; and the NACS Foundation, the association’s philanthropic education and research arm. Combined, they have an annual budget of more than $150 million.

“Brian has guided our association with intellect and care through both good and challenging times for our industry,” wrote Anthony Martin, president of the NACS Board of Trustees and director of the Houston Baptist University Bookstore in Houston, Tex., in a letter to membership. “During Brian’s tenure the accomplishments of our association have been vast and have culminated with the formation and positioning of NACS subsidiary indiCo to proactively help promote and position the independent store model as integral to the campus mission.”

The NACS board will immediately begin the search process for finding a new CEO.