Sen. Daniel Inouye's (D-Hawaii) body will lie in state in the Capitol Rotunda on Thursday.
Inouye's body is expected to arrive the Capitol around 10 a.m. and remain in the Rotunda until 8 p.m. or longer if needed.
The Senate is not expected to be in session during that time.
Inouye's body will remain in the Capitol until 9:15 a.m. Friday when it will be taken to a 10:30 service at the National Cathedral.
His body will then be flown back to Hawaii for a service and burial on Sunday.
Inouye, who had served in the Senate since 1963, will be the first dignitary to lie in state since President Gerald Ford lay in state nearly six years ago on Dec. 26, 2006.
He is the first senator since Claude Pepper, who died in 1989, to lie in state.
The casket of the senior senator from Hawaii will lay on the catafalque, a wooden platform hastily constructed for Abraham Lincoln, which has supported all of those who have lain in state in the Capitol Rotunda.