When President Trump ordered federal agencies to form teams to dismantle government regulations, the Transportation Department turned to people with deep industry ties.

One appointee had previously lobbied the department on behalf of American Airlines. Another held executive roles for several electric and hybrid car companies regulated by the department. A third was a lawyer who represented United Airlines in regulatory matters.

The three appointees have been identified by The New York Times and ProPublica in a continuing effort to track members of the deregulation teams. The appointments, previously unreported, follow a pattern identified by the two news organizations: By and large, the Trump administration has stacked the teams with political appointees, some of whom may be reviewing rules their former employers sought to weaken or kill.

A full vetting of industry connections has been difficult because some agencies have declined to provide information about the appointees — not even their names.