Catastrophic release means a major uncontrolled emission, fire, or explosion, involving one or
more highly hazardous chemicals, that presents serious danger to employees in the workplace.
Facility means the buildings, containers or equipment which contain a process.
"Highly hazardous chemical" means a substance possessing toxic, reactive, flammable, or
explosive properties and specified by paragraph (a)(1) of this section.
"Hot work" means work involving electric or gas welding, cutting, brazing, or similar flame or
"Normally unoccupied remote facility" means a facility which is operated, maintained or
serviced by employees who visit the facility only periodically to check its operation and to
perform necessary operating or maintenance tasks. No employees are permanently stationed at
the facility. Facilities meeting this definition are not contiguous with, and must be
geographically remote from all other buildings, processes or persons.
"Process" means any activity involving a highly hazardous chemical including any use, storage,
manufacturing, handling, or the on-site movement of such chemicals, or combination of these
activities. For purposes of this definition, any group of vessels which are interconnected and
separate vessels which are located such that a highly hazardous chemical could be involved in a
potential release shall be considered a single process.
"Replacement in kind" means a replacement which satisfies the design specification.
"Trade secret" means any confidential formula, pattern, process, device, information or
compilation of information that is used in an employer's business, and that gives the employer an
opportunity to obtain an advantage over competitors who do not know or use it. Appendix D
contained in 1910.1200 sets out the criteria to be used in evaluating trade secrets.
(c) Employee Participation.
Employers shall develop a written plan of action regarding the implementation of the
employee participation required by this paragraph.
Employers shall consult with employees and their representatives on the conduct and
development of process hazards analyses and on the development of the other elements
of process safety management in this standard.