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Risk Management Planning:
Accidental Release Prevention
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Final Rule: Clean Air Act Section
112(r)
The risk management planning requirements of CAA section 112 (r)
complement and support the Emergency Planning and Community Right-to-Know
Act of 1986. EPCRA improves the ability of communities to prepare for and
respond to chemical accidents. Under EPCRA, communities must develop
emergency response plans, based on information that facilities must
provide on the hazardous chemicals they handle. The CAA's section 112(r)
includes requirements for accidental release prevention regulations.
EPA proposed its regulation on risk management planning on October 20,
1993. Its requirements apply to facilities that have more than a
threshold quantity of a regulated substance in a process. As mandated by
the CAA, the final rule requires facilities to develop and implement a
risk management program that includes a hazard assessment of the off-site
consequences of releases under worst case and alternate scenarios, a
prevention program, and an emergency response program. Information about
the program must be documented in a risk management plan that is
submitted to a central location and made available electronically to
states and local planing agencies as well as the public.
On January 31, 1994, EPA promulgated a final rule on the substances and
thresholds: 77 acutely toxic chemicals, 63 flammable gases and volatile
flammable liquids, and Division 1.1 high explosive substances as listed
by DOT. The final risk management planning regulations can be found at 40
CFR part 68.
In the broadest sense, risk management planning relates to local
emergency preparedness and response, to pollution prevention at
facilities, and to worker safety. In a more focussed sense, these
requirements build on OSHA's Process Safety Management Standard (issued
on Feb. 24, 1992). They also draw from the chemical safety guidelines of
the Center for Chemical Process Safety of the AIChE and similar standards
of the American Petroleum Institute and Chemical Manufacturers
Association.
The elements of the prevention program include the following:
- Review and documentation of the plant chemicals, processes, and
equipment;
- Detailed process hazard analysis to identify hazards, assess the
likelihood of accidental releases, and evaluate the consequences of such
releases;
- Development of standard operating procedures;
- Training of employees on procedures;
- Implementation of a preventative maintenance program;
- Management of changes in operation that may impact the safety of the
system;
- Reviews before initial start-up of a process and before start-up
following a modification of a process;
- Investigation and documentation of accidents;
- Periodic safety audits to ensure that procedures and practices are
being followed.
The final risk management planing regulation (40 CFR 68) defines the
activities sources must undertake to address the risks posed by regulated
substances in covered processes. To ensure that individual processes are
subject to appropriate requirements that match their size and risks they
may pose, EPA has classified them into three categories ("Programs").
Program 1 requirements apply to processes for which a worst-case release,
as evaluated in the hazard assessment, would not affect the public. These
are sources or processes that have not had an accidental release that
caused serious offsite conseqences. Remotely located sources and
processes using listed flammables are primarily those eligible for this
program.
Program 2 requirements apply to less complex operations that do not
invlove chemical processing (e.g., retailers, propane users, non-chemical
manufacturers, and other processes not regulated under OSHA's PSM
Standard).
Program 3 requirements apply to higher risk, complex chemical processing
operations and to processes already subject to the OSHA PSM.
The OSHA PSM Standard (29 CFR 1910.119) reflects the key elements that
the petrochemical industry, trade associations, and engineering societies
have deemed essentail to safe management of hazardous substances for
complex, chemical-processing operations. EPA has adopted OSHA's PSM
requirements as the Program 3 prevention program, with only minor changes
in terminology. With few exceptions, processes assigned to Program 3 are
already subject to the OSHA PSM Standard; the remaining Program 3
processes are in industry sectors that have a significant accident
history.
For more information, contact the Emergency Planning and Community
Right-to-Know Hotline at: 1-800-424-9346 or visit the CEPPO Home
page
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