Schedule - hdbk11000017

DOE-HDBK-1100-2004

2.2.1 Schedule

Covered chemical processes must comply with the following:

The PrHA must be in place prior to process startup.

Each PrHA must be updated and revalidated at least every 5 years to assure that it

is consistent with the current process.

2.2.2 Scope

To help assure that all hazards are identified and evaluated, PrHAs must address the following.

The hazards of a process. These hazards may be identified by performing a PHA.

Previous incidents that had the potential for catastrophic consequences in the

workplace.

Engineering and administrative controls applicable to the hazards and their

interrelationships.

The consequences of failure of engineering and administrative controls.

The influence of facility siting.

Human factors.

A qualitative range of possible safety and health effects on employees in the

workplace caused by failure of controls.

2.2.3 Team

PrHAs must be performed by a team. Teams can vary in size and in operational background,

but must have expertise in engineering and process operations. Individuals may be full-time

team members or may be part of a team for only a limited time. That is, team members may be

rotated according to their expertise in the part of the process being reviewed.

The team conducting a PrHA must understand the method being used. In addition, one member

of the team must be fully knowledgeable in the implementation of the PrHA method.2 The PSM

Rule also requires that at least one team member be an "employee" with experience and

knowledge specific to the process being evaluated. Some organizations have interpreted the

term "employee" to mean an hourly employee such as a senior operator.

The ideal PrHA team has an intimate knowledge of the standards, codes, specifications, and

regulations applicable to the process. Team members must be compatible, and the team leader

must be able to manage the team and the study.

2. OSHA does not specify that the team leader be the member of the team who is knowledgeable in the

implementation of the PrHA method.