US Secret Service Director Mark Sullivan is set to quit after nearly seven years in the post and three decades with the agency.
In a statement, President Barack Obama thanked Sullivan for protecting five first families, including his own.
According to Politico, Homeland Security Secretary Janet Napolitano also commended his service, which spanned five presidents, and wished him well in retirement.
Sullivan and his agency came under intense public scrutiny last year when agents were ensnared in a prostitution scandal in Colombia ahead of Obama's visit there.
At the time, Obama said he had complete confidence in Sullivan's leadership of the agency, the report said.
Napolitano catalogued his lengthy record of service at the agency and noted that he won Distinguished Presidential Rank awards in 2005 and 2010, it added. (ANI)