Guidelines for Auditing Process Safety Management Systems
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Guidelines for Auditing Process Safety Management Systems - CCPS (Center for Chemical Process Safety)
INTRODUCTION
An audit is a fundamental part of an effective PSM program because its purpose is to verify that systems to manage process safety are in place and functioning effectively, and to take corrective action when findings indicate that is warranted.
This book describes PSM program elements that are both regulatory and nonregulatory. The CCPS book Guidelines for Risk-Based Process Safety (CCPS, 2007c) (RBPS) was used as a basis for choosing the program structure, that is, the elements that make up a PSM program. These elements are similar to but not identical to the elements in OSHA’s Process Safety Management (PSM) Standard (29 CFR §1910.119), and the prevention program contained in EPA’s Risk Management Program (RMP) Rule (40 CFR §68). In addition to the technical elements of a PSM program, this book addresses other sources of PSM program content and guidance, including the following:
Process safety culture, as described in the RBPS book, the Baker Commission Report on the accident at BP–Texas City, the Chemical Safety Board (CSB) report on BP–Texas City, and the Responsible Care® former Process Safety Code published by the American Chemistry Council.
OSHA’s audit guidance published in the National Emphasis Program (NEP) for refineries.
The Safety and Environmental Management Program (SEMP) published by the Minerals Management Service of the Department of the Interior for offshore oil platforms. SEMP is a voluntary program between the offshore oil exploration and production (E&P) industry and the U.S. Department of the Interior, Minerals Management Service (MMS). Oil platforms located on the outer continental shelf (OCS) are regulated by MMS, not OSHA. A voluntary PSM program developed by API and published in API RP-75 allows OCS facilities to implement a PSM program that is not regulatory but is recognized by MMS as a good industry practice for that sub-sector. The SEMP audit criteria are part of API RP-75 and may also be obtained at www.mms.gov/semp.
International process safety standards such as Seveso II in Europe, the International Labor Organization (ILO) standard C174, and the International Standards Organization (ISO) guidance on auditing quality and environmental managements systems (ISO 19011).
Therefore, this book does not provide guidance for auditing only OSHA PSM programs, although it certainly includes such programs. In addition, this book is intended for an international audience and not just a U.S. domestic audience. International users would have to add and/or substitute regulatory requirements for PSM programs that are specific to their jurisdictions, as well as company and site-specific requirements. Appendix H provides additional auditing guidance for facilities in other countries or for U.S. companies with international operations. The book is intended to be used mainly during the operating phase of the life of a process; however, its guidance is relevant for PSM audits conducted at other times during the life cycle of a process.
Although this book addresses a broad range of possible PSM programs and management systems, it does not provide specific guidance for auditing the following types of programs:
ACC’s Responsible Care®, with the exception of the process safety portions of RCMS®.
Quality management systems, e.g., ISO 9000.
Security management systems.
Occupational health and safety programs.
Environmental programs, except for those that are part of a Risk Management Program (as required by 40 CFR §68, which is a process safety regulation and not a classical environmental regulation).
While the guidance provided herein is specific to PSM programs, many of the basic principles, as described in Chapters 1 and 2, are applicable to audits of any management system, including those listed above.
A comprehensive audit of process safety management systems can be accomplished using different approaches. This book provides alternatives for developing audit programs to meet the needs of a variety of companies from small businesses to international corporations. The book also addresses some basic skills, techniques, and tools that are fundamental to auditing, and some characteristics of good process safety management systems that an auditor should be looking for in facility PSM programs. Regardless of the approach and techniques used to conduct process safety management systems audits, the most important aspects are that the audits be objective, systematic, and done periodically.
NOMENCLATURE
Because the terms process safety management
and the acronym PSM
are often used interchangeably they are assigned explicit definitions for the purpose of this book in order to avoid confusion. These terms will have the following meanings:
Process safety management: This term will be used to refer to a process safety management program or audit of such a program generically. In this book this term does not refer exclusively to OSHA’s Process Safety Management Standard.
PSM: The acronym PSM
will be used in conjunction with process safety management. Hence, the term PSM audit
as used in this book will refer to an audit of any process safety program, and not just an audit performed pursuant to or in accordance with OSHA’s PSM Standard or the prevention portion of EPA’s RMP Rule.
OSHA PSM and EPA RMP: This term will be used to refer to a PSM program or audit that is intended to comply specifically with OSHA’s Process Safety Management Standard or the prevention portion of EPA’s Risk Management Program Rule in the United States. The terms PSM Standard
and RMP Rule
will also be used to refer to the OSHA PSM regulations (29 CFR §1910.119) and the prevention portion of the EPA RMP Rule (40 CFR §68) themselves, respectively.
Finding: In this book the term finding
is a conclusion reached by the audit team based on data collected and analyzed in response to a specific audit criteria/question that indicates a need for improvement exists in the PSM program design or implementation. Although strictly speaking a finding can be a positive or negative conclusion, common custom and terminology in auditing is to refer to the deficiencies identified as the findings.
In this book, the term finding
will refer to the audit criteria or question, its answer (if audit questions were used), and the explanatory conclusion that describes the deficiency. Positive aspects of PSM programs will be referred to positive results.
Should: In this book the word should
has been used to refer to action or guidance that is not mandatory. This has been applied to both the compliance and related audit criteria. The reason that the compliance criteria are prefaced by should
rather than ‘shall,
must," or other imperative terms is because the regulations described in this book that govern PSM programs from which the compliance criteria derived are performance-based in nature. Consequently, there may be multiple pathways to successful compliance and it is not the intent of this book to specify one method of compliance as being preferred or better than another, even inadvertently.
Related: In this book, the term related
generally refers to audit criteria that are not mandatory or are not compliance issues. As such, it is usually either paired with the word criteria
or is used in a sentence where the context is to distinguish between compliance criteria or issues and those that are not compliance or mandatory. Other uses of related
that connote its typical meaning and syntax should be clear from the context of the sentence or paragraph where it is used.
Element Names: In the element chapters (Chapters 3–24), the name of each PSM program element in the title of the chapters is the same as that used in the CCPS RBPS book. The RBPS name has also been used in the section of each chapter containing the related criteria applicable to the element. However, in the compliance table of each chapter, the element names contained in the OSHA PSM Standard and EPA RMP Rule have been used. The OSHA PSM/EPA RMP element has also been used in several sections of the book where the context is clear with respect to these regulations and the use of the RBPS element name would be confusing. A cross-reference between OSHA PSM elements and RBPS elements is shown in Table 1.
These and other terms are defined in the Glossary.
Table 1 Cross-Reference of RBPS Program Elements and OSHA PSM Elements
REFERENCES
Center for Chemical Process Safety, Guidelines for Risk Based Process Safety, American Institute of Chemical Engineers, New York, 2007 (CCPS, 2007c)
GUIDANCE FOR CHAPTERS 3–24
Chapters 3–24 provide detailed information and guidance for auditing specific elements of a PSM or RMP program. The following structure is used in these chapters:
Each element chapter is formatted in a similar manner. The audit criteria and guidance section of each chapter presents two basic types of audit criteria: compliance criteria and related criteria. The compliance criteria are derived from the federal and state PSM-related regulations themselves. The related criteria are derived from several sources of clarification of these regulations, industry good/common practices in PSM, other government and industry publications on PSM, as well as several voluntary consensus programs in PSM as follows:
– Appendix B (Interpretations and Clarifications) of PSM Compliance Directive—OSHA Instruction CPL 02–02–45
– National Emphasis Program (NEP) for Refineries—OSHA Instruction CPL 03–00–004
– Written and verbal clarification of the PSM and RMP regulations by their respective regulators
– Citations issued against the OSHA PSM Standard
– Nonmandatory publications on the OSHA PSM Standard and EPA RMP Rule:
OSHA 3133
Appendix C of the PSM Standard
Preamble of the PSM Standard
Good, successful, or common industry practices in PSM and RMP
CCPS book Guidelines for Risk Based Process Safety
The Safety and Environmental Management Program (SEMP) guidance for the offshore oil industry
The Responsible Care Management System® of the American Chemistry Council
PSM guidance originally published by the Major Industrial Accidents Council of Canada (MIACC) before its dissolution in 1999 and now sponsored by the Canadian Chemical Producer’s Association (CCPA)
Supplemental guidance for facilities that are part of the Voluntary Protection Program (VPP) and are covered by OSHA’s PSM Standard
The Baker Panel report on the accident at the Texas City refinery
BP’s incident investigation report of the accident at the Texas City refinery
In Chapter 3, PSM Applicability, a description of rulings by the Occupational Safety and Health Review Commission (OSHRC) is included where appropriate as compliance auditor guidance. The OSHRC is an independent body of administrative law judges who rule on the appeal of citations issued by OSHA against companies for violations of their standards. The rulings of the OSHRC are binding on OSHA, and represent compliance guidance for the regulators as well as those companies/facilities covered by those regulations.
The name of each PSM program element in the title of the chapters is the same as that used in CCPS’s Guidelines for Risk Based Process Safety (CCPS, 2007c). This RBPS name has also been used in the related-criteria section of each chapter to refer to the element. However, in the compliance section of each chapter, the element name contained in the OSHA PSM Standard and EPA RMP Rule has been used.
The inclusion of all of the criteria in Chapters 3–24 does not imply that the use of all these criteria is mandatory in any given audit for it to be successful. The extensive nature of the criteria provided in the element chapters is to allow those planning PSM audits the largest number of available criteria to choose from when evaluating PSM programs. Section 2.1.2.2 provides additional guidance on selecting audit criteria for a specific audit.
The criteria and guidance described in these sections do not represent exclusive solutions to PSM program coverage, design, implementation, or interpretation. They represent the collective experience of many people in the chemical/processing sector who have performed many PSM audits, and the consensus opinion resulting from that experience. The compliance criteria are derived from the regulations that govern PSM programs in the United States; however, these regulations are all performance based. Performance-based regulations are goal oriented and there may be multiple pathways towards fully complying with them. Therefore, there may be alternate interpretations and solutions to the issues described in the compliance tables that are equivalent to those included, particularly the auditor guidance presented.
The purpose of providing the related criteria is to give auditors additional guidance for evaluating PSM programs with respect to issues that go beyond the strict compliance requirements presented in the appropriate federal, state, or local regulations. These criteria, in large part, represent industry good, successful, or common practices. Some of them may represent levels of acceptable practice and should be carefully considered for examination in a PSM audit. The inclusion of the related criteria in this book in no way infers that these criteria are required for a PSM program to be successful, nor does it infer that a PSM program will be deficient without them. There may be other, more appropriate solutions to the issues described by these criteria and the accompanying auditor guidance for an individual facility or company. In addition, their evaluation in a PSM audit is intended to be completely voluntary and not a mandatory requirement in any way. The related criteria should be used cautiously and with careful planning so that they do not inadvertently establish unintended PSM performance standards. Consensus should be sought within and between facilities and their parent companies before these criteria are used. Finally, the related criteria and guidance offered for consideration are not endorsements of nor agreements with the written or verbal clarifications made by the regulators, PSM citations issued against the regulations, other PSM guidance published by the regulators, or the successful or common PSM practices in any given company’s PSM program from which they are derived.
The audit criteria for trade secrets are included in Chapter 7, Workforce Involvement.
Persons identified for possible interviews are named using common industry titles for persons with the responsibilities described, but these titles are used in a generic manner. Actual titles vary from company to company and sometimes among facilities of the same company. Auditors will need to determine exactly who has specific responsibilities or input at each facility where that perform an audit.
Chapter 24 provides audit criteria for a RMP program exclusive of the prevention program portion of that program. Audits of this portion of RMP are not mandatory for regulated sites. Such audits are the responsibility of the implementing agency for RMP, which may be EPA or a state that has been granted that status by EPA—New Jersey, California, and Delaware have been granted such status. However, the prevention part of RMP must be audited triennially by the regulated site (same requirement as OSHA PSM). The element chapters provide these criteria. Chapter 24 addresses the following sections of RMP: registration, the RMP management system, the RMP submitted to the implementing agency, hazard assessment, and the RMP emergency response requirements (beyond the emergency response provisions required by OSHA PSM and prevention portion of RMP).
Each element chapter contains state PSM program audit criteria for the following states: New Jersey, California (CalOSHA and CalARP), and Delaware. Only the unique state requirements have been described and audit criteria provided for them. Where the state requirements are identical to the corresponding OSHA PSM and EMP RMP requirement, they have not been repeated in the state section of the element chapter. Additional state PSM regulatory information and guidance can be found at the following websites:
– New Jersey: www.state.nj.us/dep/rpp/brp/tcpa/index.htm
– Delaware: www.awm.delaware.gov/EPR/Pages/AccidentalReleasePrevention.aspx
– California:
CalARP: www.oes.ca.gov/Operational/OESHome.nsf/9785961716919627 88256b350061870e/452A4B2AF244158788256CFE00778375? OpenDocument
CalOSHA: http://www.dir.ca.gov/title8/5189.html
– Washington: http://search.leg.wa.gov/wslwac/WAC%20296%20%20TITLE/WAC %20296%20–%2067%20%20CHAPTER/WAC%20296%20–%2067%20–001.htm
– Louisiana: http://www.dir.ca.gov/title8/5189.html
– Nevada: ndep.nv.gov/baqp/cap.html
Each compliance and related audit criteria is assigned a reference number. The following format has been used for these numbers:
XX–Y–ZZ
Where:
XX = Chapter number
Y = C
for compliance or R
for related
ZZ = Sequential number starting at 1. The number resets for related criteria.
In each compliance and related criteria table of the element chapters, the followings abbreviations are used to indicate the source of the criteria:
Chapter 1
PROCESS SAFETY MANAGEMENT AUDIT PROGRAMS
1.1 PROCESS SAFETY MANAGEMENT (PSM) AUDITS AND PROGRAMS
Auditing is an element of a PSM program. It is a critical element in that it provides information about the effectiveness of the program and contributes to management control of other processes, systems, facilities, and safety and health programs. A sound PSM audit program will help improve the effectiveness of a PSM program.
In discussing PSM auditing, some confusion over terminology may arise. Auditing
is used in various contexts to describe many different types of review or assessment activities. In this book, an audit is a systematic, independent review to verify conformance with established guidelines or standards. It employs a well-defined review process to ensure consistency and to allow the auditor to reach defensible conclusions. Other related activities sometimes referred to as audits include the following:
Inspection. The process of physically examining a facility.
Assessment, evaluation, and review. Less formal reviews, which may combine aspects of inspections and audits, are guided by the judgment, experience, and inclination of the reviewer, often without a well-defined review procedure or process. Such a review often has a broader scope than an inspection, but it does not have the consistency and rigor of an audit. At times, companies or facilities will use these three terms and other less formal terms in lieu of audit,
but the activity has the same rigor as an audit, often the same protocol, the same way of using the protocol (i.e., interviews, record review, etc.), and the same reporting requirements. The reasons for using these terms interchangeably vary widely. Some companies have very strict rules governing any activity entitled audit,
including legal governance. Some companies reserve the word audit
to only those activities that are regulatory or compliance related.
In its early publications (CCPS, 1989a and 1989b), the American Institute of Chemical Engineers’ Center for Chemical Process Safety (CCPS) defined 12 elements of a process safety management program. Subsequently, OSHA adopted the Process Safety Management Standard (OSHA, 1992), which contains 14 elements, and the applicability section of the standard. In 2007 CCPS revised the definition of a process safety management program in the publication of the Guidelines for Risk Based Process Safety (CCPS, 2007c) to include 20 elements. In addition, several states adopted process safety regulations before and after CCPS and OSHA established their programs, for example, New Jersey (NJ, 1987), California (CA, 1988), Delaware (DE, 1989), Washington (WA, 1992), Louisiana (LA, 1993), and Nevada (NV, 1994). Some states have simply adopted the OSHA PSM standard verbatim, or nearly so, while other states have added state-specific requirements. Several states have modified their state PSM programs to include the federal RMP Rule and obtain implementing agency status from the EPA to enforce the RMP Rule within their jurisdictions (e.g., Delaware, Florida, Georgia, Kentucky, Mississippi, New Jersey, North Carolina, Ohio, and South Carolina). California has its own state RMP regulation (the CalARP program), but it is not an implementing agency for the federal RMP Rule. Also, since the publication of the first edition of this book, a number of domestic and international governmental and nongovernmental organizations have developed and published PSM program requirements. Some of these have been mandatory requirements embedded in various regulations, and some have been voluntary standards representing the consensus of the publishing organization. Table 2.1 summarizes several of these various mandatory and voluntary process safety requirements. The table has been arranged so that comparable program elements are in the same row, recognizing that the detailed requirements between comparable elements may not be the same. Some of these programs have elements that have no corresponding element in another program and these have been placed at the bottom of the table.
For the purposes of the book, the elements published by CCPS in Guidelines for Risk Based Process Safety (CCPS, 2007c) have been used as a guide to describing a PSM program and its elements. Management systems that address each of these 20 elements should be established to form a comprehensive PSM program.
The ISO 14001 Standard defines a management system as that part of the overall management system that includes organizational structure, planning activities, responsibilities, practices, procedures, processes, and resources for developing, implementing, achieving, reviewing, and maintaining the environmental policy.
Process safety management systems are comprehensive sets of policies, procedures, and practices designed to ensure that barriers to episodic and potential process safety incidents are in place, in use, and effective. EHS management systems, including those designed for PSM programs, typically follow closely the Plan-Do-Check-Act (PDCA) model used in many total quality management systems. A PDCA management system is founded upon the notion that continuous improvement is a cardinal principle. The plan
portion of this model is essentially the development of written policies and procedures to define a desired program (in this case a PSM program). The do
portion is where these policies and procedures are implemented (usually the most difficult step). The check
portion is the evaluation or auditing of what occurs during the do
step, while the act
step involves taking what is learned and feeding the lessons learned back to revise the policies and procedures if necessary. This circular design with appropriate feedback is the key aspect of a PDCA management system and provides the continuous improvement. Figure 1.1 depicts a PDCA management system.
FIGURE 1.1 Plan-Do-Check-Act Management System
Process safety management auditing is the systematic review of these management systems to verify the suitability of these systems and their effective, consistent implementation. PSM audits are intended to determine whether management systems are in place and functioning properly to ensure operating facilities and process units have been designed, constructed, operated, and maintained to ensure that the safety and health of employees, communities, customers (to the extent that portions of the PSM program extend beyond the facility boundary, such as emergency response planning), and the environment are being properly protected. These audits are an important control mechanism within the overall management of process safety. In addition, these audits can provide other benefits such as improved operability and increased safety awareness. There are several items that are not included in the purpose or methods of a typical PSM audit:
Focus on the programmatic aspects of PSM programs, not on identifying the equipment/process hazards. Process hazard analyses, hazard identification, risk assessments, and other similar activities are intended to determine the possible hazards and risk associated with the processes/equipment under consideration.
Verify or replicate the engineering activities that took place to design the equipment and processes. For example, a PSM audit should not include within its scope work or activities that replicate the calculations performed to establish the set point and capacity of the relief devices in the processes. Engineering design reviews, design approvals, or the technical reviews associated with a MOC procedure are the appropriate places to perform this basic engineering work. A PSM audit would verify that the calculations have been performed and are in the facility’s files; the correct recognized and generally accepted good engineering practices (RAGAGEP) were used to design, install, and periodically test the relief devices; and the engineering design reviews or project approvals specified in the project manual/procedures were carried out and documented. This thin, but distinct line between auditing and engineering should be carefully observed. Audit teams have neither the time nor the expertise to perform basic engineering work, and it is always outside the purpose and scope of a PSM audit.
The criteria used during PSM audits, which will be used to evaluate PSM program, may be limited to the requirements of specific laws and regulations, or they may be broadened to include company policies and standards, or the guidelines of organizations described in Table 1.1. Each company should decide on appropriate audit criteria during the design of its audit program. The audit criteria are the reference points against which the PSM program will be compared to determine whether any deficiencies