Maintains positive control
Maintains positive control means that the rail hazardous materials receiver and the railroad carrier communicate and cooperate with each other to provide for the security of the rail car during the physical transfer of custody. Attending the rail car is a component of maintaining positive control.
Source
49 CFR § 1580.3
Scoping language
In addition to the terms in 1500.3, 1500.5, and 1503.202 of subchapter A and 1570.3 of subchapter D of this chapter, the following terms apply to this part: