The Smithsonian Castle in Washington, D.C. (AP). The Smithsonian Castle in Washington, D.C. (AP).

The Smithsonian Institution plans to close small exhibit sections in four of its museums beginning Wednesday due to the across the board budget cuts known as sequestration.

The closures, announced by Secretary Wayne Clough after a Board of Regents meeting Monday, are part of $42 million in cuts that began March 1 and extend through Sept. 30, according to a Washington Post report.

The moves are part of a reduction in a security contract that supplements the Smithsonian security force, according to the report.