About a third of the Corcoran Gallery of Art and College of Art & Design’s 465 employees are slated be laid off as soon as mid-August as the longstanding art institutions prepare to merge with the National Gallery of Art and the George Washington University.

The Corcoran issued a layoff notice to all of its employees last month, but the Corcoran expects about a third of them will actually be laid off as of Aug. 16, which is the effective date affiliated with the notice.