(a) General. A risk assessment submitted under this subpart must meet the following requirements:

1. (1) Contain a list and descriptions of all functions, duties, and tasks associated with the proposed operation to be performed by the one-person train crewmember, other railroad employee(s), or equipment, including, at a minimum, any function performed:

   1. (i) To prepare a train for operation (including, but not limited to, pre-departure inspections, obtaining track bulletins, orders, or manifests, managing the train consist, including train makeup, obtaining and ensuring the accuracy of the train consist, arming and testing the end-of-train device, and performing brake tests);
   2. (ii) To operate a train (including, but not limited to, operating and controlling the train, interacting with non-crewmembers such as the dispatcher or roadway workers, and responding to emergencies or unexpected events); and
   3. (iii) To ensure safety once a train has stopped moving (e.g., including, but not limited to, securing the train).
2. (2) Describe the allocation of all functions, duties, and tasks to the one-person train crewmember, other railroad employee(s), or equipment.

3. (3) Contain a risk-based hazard analysis for the proposed train operation's functions, duties, and tasks, that shall:

   1. (i) Identify any new hazards, changes to existing hazards and/or changes to the risk of an existing hazard associated with the proposed train operation, as compared to a two-person minimum train crew operation, taking account of all aspects of the railroad's system, including, at a minimum, infrastructure, equipment, technology, work schedules, mode of operation, operating rules and practices, training and other areas impacting railroad safety;
   2. (ii) Calculate and/or update each risk, quantitatively or qualitatively, or both, by assessing each new hazard, change to an existing hazard and/or change to the risk of a hazard, in terms of the severity and likelihood of a mishap;
   3. (iii) Recalculate each risk mitigated in accordance with § 218.131(b)(15), quantitatively or qualitatively, or both, by assessing each new hazard, change to an existing hazard and/or change to the risk of a hazard and the level of mitigation (elimination or reduction), in terms of the severity and likelihood of a mishap; and
   4. (iv) Provide a statement with supporting evidence that the one-person train crew operation with a fully implemented mitigation plan is as safe or safer than a two-person minimum train crew operation.

4. (4) Contain a mitigation plan that documents the design and implementation timeline of the sustained mitigation strategies to eliminate or reduce the overall risk to a level such that the one-person train crew operation is as safe or safer than a two-person minimum train crew operation, considering, at a minimum, the following:

   1. (i) The design of the system, equipment, and components, including equipment reliability and the necessary functions to be performed, in both a normal operation and in a degraded or failed state; and
   2. (ii) The human factors associated with the processes and tasks to be performed, including the required skills and capabilities, the operating environment, and existing or potential impairments.