2.10 Management of Change
29 CFR 1910.119(l)
The employer shall establish and implement written procedures to manage changes (except for
"replacements in kind") to process chemicals, technology, equipment, and procedures; and, changes to
facilities that affect a covered process.
The procedures shall assure that the following considerations are addressed prior to any change:
The technical basis for the proposed change;
Impact of change on safety and health;
Modifications to operating procedures;
Necessary time period for the change; and,
Authorization requirements for the proposed change.
Employees involved in operating a process and maintenance and contract employees whose job tasks will be
affected by a change in the process shall be informed of, and trained in, the change prior to start-up of the
process or affected part of the process.
If a change covered by this paragraph results in a change in the process safety information required by
paragraph (d), such information shall be updated accordingly.
If a change covered by this paragraph results in a change in the operating procedures or practices required
by paragraph (f), such procedures or practices shall be updated accordingly.
The intent of the MOC element is to require management of all modifications to equipment,
procedures, materials, and processing conditions other than replacement in kind. All changes
should be identified and reviewed prior to their implementation, and the impact of design,
operational, and procedural changes on process safety should be addressed and managed. A
process change is defined as any alteration, whether temporary or permanent, that could affect
the control or integrity of a system covered by the PSM Rule. This element is a critical part of
the PSM Rule because it helps to integrate many of the other elements of the Rule. Process
changes in process technology such as raw materials, process chemistry, process control
systems, equipment design, and piping and equipment specifications;
addition or removal of process equipment or piping;
changes in process parameters;
changes in utilities;
changes in procedures;
changes in facilities; and
personnel changes (OSHA has held that personnel changes are inferred in term facilities).
Corresponding DOE Programs and Requirements