Miami-Dade Commissioners Rebeca Sosa becomes Miami-Dade commission’s first Hispanic chairwoman when she is sworn in on Friday by U.S. Sen. Marco Rubio.

Also being sworn in is fellow commissioner Lynda Bell, who is now the vice chair. Miami-Dade County Judge Gladys Perez will swear in Bell

The installation ceremony will be at 11:30 a.m. ceremony at the commission chambers at the Stephen Clark Center, 111 NW First St.

First elected in 2001, Sosa represents District 6, which includes areas of Miami, Coral Gables, West Miami, Hialeah and Miami Springs, as well as unincorporated zones.

Sosa’s office explained the Florida Senator is doing the honors at the historic swearing in because the two are long-time friends.

Bell who was elected in 2010 represents District 8, which encompasses a significant area of southeastern Miami-Dade, including the municipalities of Palmetto Bay, Cutler Bay and Homestead with portions of Kendall an the Redlands.

Sosa and Bell won two-year terms in November.

The installation ceremony is open to the public.