There should be no debate that the NTSB’s party process has been a tremendous success in helping the Board identify the causes of an accident and enhancing safety in all sectors of transportation. Current Section 831.11 of the Board’s regulations is specifically targeted to permit the investigator-in-charge of an accident to confer party status only on those “persons, government agencies, companies, and associations whose employees, functions, activities, or products were involved in the accident or incident and who can provide suitable qualified technical personnel … to assist in the investigation.” As the Board has correctly noted, the agency investigates approximately 2,500 accident and incidents a year and with a limited staff, the party process is one way the Board has successfully leveraged its resources to meet its broad and complex responsibilities.
We know that front-line workers and their unions often provide a perspective and expertise that would otherwise not be present in an investigation. Employees understand the unique and real-world challenges of their workplace and can help NTSB investigators view the accident in the most accurate context, taking all variables into consideration. The fact is that as a result of their direct daily involvement with the equipment, functions, and events similar to that which were involved in the accident, transportation workers can offer expertise at a highly detailed level that the Board would be hard-pressed to replicate.
The party process also enhances the ability of equipment manufacturers and service providers whose products were involved in an accident to have direct access to information produced during an investigation. This in turn allows corrective actions to be taken more quickly and in line with the immediate lesson learned from an investigation.
We respect the Board’s decision to comply with Executive Orders 13563 and 13579 by creating a plan to review 49 CFR Part 831 within the next several months and biennially thereafter. As NTSB prepares for the initial evaluation, we encourage the Board to maintain Part 831 as it currently operates and to ensure that the party process remains an integral part of the accident/incident investigations as it is today.
 Attached is a list if TTD’s affiliated unions.