Mayor Vincent C. Gray (D) is expected Wednesday to name Ron Linton, a longtime consultant to the District and federal governments, the as new chairman of the D.C. Taxicab Commission, two District government sources said.

Linton’s biography on the Web site of consulting firm Carmen Group says he “specializes in transportation and water resources.” He also was a reserve Metropolitan police officer for 25 years, according to the Web site.

The sources asked to remain anonymous because they were not authorized to speak publicly about the appointment.

Linton will replace Dena Reed, who had a short tenure as interim chair. Reed was recently criticized after two journalists were removed from a Commission meeting for taping the proceedings.

She had replaced Leon Swain Jr., who became well-known as an informant to the FBI in a case that led to a guilty plea and eight-month sentence for Ted Loza, former chief of staff to Council member Jim Graham, for accepting gratuities.

Independent taxi drivers rallied around Gray in last year’s election against then-Mayor Adrian M. Fenty (D) who switched the taxi system from one that used zones to one with time-and-distance meters. Drivers have complained of lost wages.

In a Washington Post story last week, taxi drivers said they gave the Gray campaign thousands of dollars in cash, money orders and checks. The Post found several discrepancies with cash and money orders through campaign finance records and interviews with contributors.