SBF 70 years logo
MenuMENU
SearchSEARCH

Christopher Hart Concludes Term as NTSB Chairman

Hart, a familiar face in the school bus industry, will continue as a board member with the investigative agency. Bella Dinh-Zarr now serves as acting chairman.

Thomas McMahon
Thomas McMahonExecutive Editor
March 16, 2017
Christopher Hart Concludes Term as NTSB Chairman

Christopher Hart, a familiar face in the school bus industry, will continue as a board member with the National Transportation Safety Board after his term as chairman ended on schedule. Photo courtesy NTSB

2 min to read


Christopher Hart, a familiar face in the school bus industry, will continue as a board member with the National Transportation Safety Board after his term as chairman ended on schedule. Photo courtesy NTSB

WASHINGTON, D.C. — Leadership at the National Transportation Safety Board (NTSB) shifted on Wednesday as Christopher Hart’s term as chairman ended on schedule.

NTSB Vice Chairman Bella Dinh-Zarr now serves as the agency’s acting chairman. Meanwhile, Hart will continue as a board member, with that term slated to end on Dec. 31.

Ad Loading...

Hart’s two-year term as NTSB chairman began in March 2015, and he served as acting chairman for almost a year before that. He has been a familiar face in the school bus industry, having spoken numerous times at national conferences. He also presided over NTSB’s on-scene investigation of the recent fatal school bus crash in Chattanooga, Tennessee.

In an interview with School Bus Fleet in 2015, Hart discussed other school bus crash investigations and the agency’s findings on seat belts, among other safety issues.

NTSB Vice Chairman Bella Dinh-Zarr now serves as the agency’s acting chairman.

NTSB's five board members are nominated by the president and confirmed by the Senate for five-year terms. A board member is designated by the president as chairman and another as vice chairman for two-year terms. When there is no designated chairman, the vice chairman serves as acting chairman.

Dinh-Zarr began her term as a board member of NTSB in March 2015, and she was also designated vice chairman. Before joining NTSB, Dinh-Zarr served as a director for the FIA Foundation, an international philanthropy that promotes safe and sustainable transportation. Her career has also included positions at AAA, the National Highway Traffic Safety Administration, the U.S. Centers for Disease Control and Prevention, and the Texas Transportation Institute.

More Safety

BusPatrol cameras on the side of a school bus.
Safetyby Staff and News ReportsMay 6, 2026

Florida District Relaunches BusPatrol School Bus Camera Program With New Safeguards

After being suspended over due process concerns, Miami-Dade schools and law enforcement are restarting the AI-powered stop-arm camera program with new oversight.

Read More →
A group of people in business attire pose for a photo in front of a school bus, with text reading "Legislative Roundup: May 2026."
Safetyby Elora HaynesMay 6, 2026

School Bus Laws To Watch: Seat Belt Bills, Funding Fights & EV Changes

From national bills on seat belts and driver oversight to driver awareness campaigns referencing “Finn’s Rule” and ongoing transportation funding debates in Alaska, here’s the latest in school bus legislation across the U.S.

Read More →
Graphic with part of a school bus and text reading "Fatal Accident in Brooklyn."
Safetyby StaffMay 5, 2026

9-Year-Old Boy Killed by School Bus at Busy Brooklyn Intersection

A Williamsburg community is mourning after a child was fatally struck by a private yeshiva bus, prompting calls for urgent safety improvements at the high-traffic crossing.

Read More →
Ad Loading...
A blue and white graphic with text reading "2026 Safety & Operations Report" with an image of the cover of the report.
Safetyby StaffMay 4, 2026

Does Reliable School Transportation Boost Attendance? EverDriven’s Data Says Yes

The new data shows 99.99% incident-free trips and strong on-time performance, reinforcing how dependable transportation, especially for vulnerable student populations, can help districts combat chronic absenteeism.

Read More →
zonar system image
SponsoredMay 1, 2026

What Data Shows About Student Transportation in 2026

Driver shortages, safety expectations, and staffing limits define student transportation in 2026. New survey data shows how fleet leaders are responding.

Read More →
an overturned school bus on a roadway after an accident
Safetyby News/Media ReleaseApril 24, 2026

NTSB Calls for Alcohol Impairment Systems, Seat Belts After W.V. Crash Investigation

The federal agency's report asks NHTSA to require all new school buses to be equipped with vehicle-integrated alcohol detection systems and passenger lap-shoulder belts.

Read More →
Ad Loading...
zonar system image
SponsoredApril 20, 2026

2026 State of Student Transportation Report

Student transportation teams are being asked to do more with less, facing driver shortages, rising costs, and increasing safety expectations. This report uncovers how fleets are adapting, where technology is making the biggest impact, and why student ridership tracking is emerging as a top priority. Download the report to explore the key trends shaping 2026 and what they mean for your operation.

Read More →
A close-up view of the top of a yellow school bus with “School Bus” signage and red lights, overlaid with a cracked-glass effect. Text on the image reads, “Multi-Vehicle Crash in TN Takes 2 Lives” and “March 27, 2026,” with the School Bus Fleet logo in the corner.
Safetyby Staff and News ReportsApril 17, 2026

2 Students Die in Tennessee School Bus Crash with Dump Truck

A Carroll County accident claimed the lives of two students and injured over a dozen others on a March 27 field trip for eighth graders at Clarksville-Montgomery County. A preliminary report adds new information to the story.

Read More →
A black, white, and red graphic with an image of Wisconsin political figures by a table and text reading "Legislative Roundup April 2026."
Safetyby Elora HaynesApril 17, 2026

School Bus Laws To Watch: Driver Shortages, EV Debates & Safety Upgrades

From driver shortage solutions in Tennessee and rural connectivity debates in Utah to new safety laws in Wisconsin and ongoing electric bus mandate discussions in New York and Connecticut, here’s the latest in school bus legislation across the U.S.

Read More →
Ad Loading...
A rendering of the 6th-generation Waymo Driver on Hyundai’s all-electric IONIQ 5 SUV
Safetyby Staff and News ReportsApril 9, 2026

Senate Report: Autonomous Car Companies Hiding Reliance on Remote Operators

Waymo’s self-driving vehicles are under fire again after repeated school bus passing violations, raising questions about safety, remote operators, and regulation.

Read More →