An Environmental Management System (EMS) is a structured framework for
managing an organisation's significant environmental impacts. Some organisations
have adopted the framework specified in national or international standards, which
set out the requirements of an EMS, and have had their systems externally assessed
and certified against these, others have developed their EMS in a more informal way.
Whatever approach has been adopted, the elements of the EMS framework will
largely be the same.
Environmental Management Systems
Martin Baxter, Technical Director
The Institute of Environmental Management and Assessment
Introduction
An Environmental Management System (EMS) is a structured framework for
managing an organisation's significant environmental impacts. Some organisations
have adopted the framework specified in national or international standards, which
set out the requirements of an EMS, and have had their systems externally assessed
and certified against these, others have developed their EMS in a more informal way.
Whatever approach has been adopted, the elements of the EMS framework will
largely be the same.
EMS background
Most organisations adopt a systematic approach to the management of their day to
day operations. Over the years, the different elements of such systems have
become more defined, and standardised approaches have been developed to help
organisations to manage certain functions, for example quality. In the early 1990’s,
work was initiated by the British Standards Institution (BSI) to develop an EMS
specification, which was first published as BS 7750 (BSI, 1992). National EMS
standards were also published in other countries, e.g. Spain and Ireland.
At around the same time, the European Commission was developing the Eco-Management
and Audit Scheme (EMAS), which was similar to BS 7750 but included
some additional requirements, for example public reporting of environmental
performance. The requirements of EMAS were published as Council Regulation
1836/93 in 1993 (EC, 1993) and were revised in Council Regulation 761/2001 (EU,
2001). Following publication of BS 7750, the International Organisation for
Standardisation (ISO) developed ISO 14001 'Environmental Management Systems
specification and guidance for use' (ISO, 1996). Its adoption as a European
Standard by the European standardisation body (CEN) meant that, in Europe, all
similar national standards were required to be withdrawn.
More recently, a new British Standard BS 8555 'Environmental Management
Systems specification and guidance for use' was published (BSI, 2003). It provides
a staged way for organisations to implement an EMS and achieve accredited
certification to ISO 14001 and registration to EMAS. It is primarily (but not
exclusively) aimed at small and medium sized enterprises.
Although the development of different standards at the national, European and then
international level was potentially confusing, all of the EMS standards followed the
Denning Cycle of: plan what you’re going to do, do what you planned to do, check to
ensure that you did what you planned to do, and act to make improvements see
Figure below.
The Denning Cycle
Plan
Act Do
Check
ISO 14001 is the most widely used EMS standard, and is one of a broad range of
environmental management standards in the ISO 14000 series. ISO 14001 is
currently being revised. The purpose of the revision is to provide clarification of the
original text and to ensure, as far as possible, compatibility with the ISO 9000:2000
quality management systems standards. It is expected that a revised edition of ISO
14001 will be published late in 2004.
EMS Definition
An EMS is defined in the latest draft revision to ISO 14001 (ISO/DIS, 2003) as:
"Part of an organisation’s management system used to develop and implement its
environmental policy and manage its interaction(s) with the environment".
Note 1 to the definition states, "A management system is a set of interrelated
requirements used to establish policy and objectives and to achieve those
objectives. Note 2 states "A management system includes organisational structure,
planning activities, responsibilities, practices, procedures, processes and resources.
ISO 14001 provides an organisation’s management with a structured framework for
identifying, evaluating, managing and improving its environmental performance. ISO
14001 uses the term organisation’ to describe the entity that falls within the scope of
an EMS.
Organisation’ is defined as:
company, corporation, firm, enterprise, authority or institution, or part or combination
thereof, whether incorporated or not, public or private, that has its own functions and
administration.
This gives a great deal of flexibility over where the boundaries of the EMS can be set.
An EMS helps to ensure that the organisation’s overall environmental objectives, as
set out in its environmental policy, are implemented throughout the organisation and
that employees, contractors and suppliers know their roles and responsibilities in
helping the organisation to achieve them. Regular measurements, monitoring and
auditing of the organisation’s environmental performance and the system that is put
in place to improve it, provide management with a basis for evaluating the
effectiveness of the EMS and making changes as appropriate. A core principle of an
EMS is that of continual improvement, thereby leading to better environmental
performance by the organisation on a sustained basis.
The following sub-headings set out the different elements of an EMS.
Environmental policy
Central to an EMS is the environmental policy. The environmental policy is a
declaration of the organisation’s overall aims and principles with respect to the
environment, as defined by its senior management. It must include a commitment to
the continual improvement of environmental performance and to compliance with
environmental legal and other requirements. The policy must also be publicly
available.
All organisations have, to some extent, an effect on the environment. The policy
should recognise this and give emphasis to those effects that are the most
significant. The policy should also be used to communicate aims and objectives to
employees and other interested parties including shareholders, customers and
suppliers. In the case of a multi-site operation there may be a number of group or
divisional operating statements which, when combined, represent the view of the
company as a whole. The organisation’s environmental policy may be integrated
with its other policies (e.g. health and safety, quality) or it can be a stand-alone
document. In order to demonstrate the commitment of senior management to the
environmental policy, it is often signed by the organisation's chairman or chief
executive.
Identification and evaluation of environmental impacts
A key element of an EMS is the process of identifying and evaluating the
organisation’s impacts on the environment (environmental impacts may be positive or
negative, beneficial or adverse), and its activities, products and services that cause
them (these are referred to as environmental aspects in ISO 14001). The evaluation
is important as it ensures that the EMS is focussed on the environmental issues that
really matter (those that are most significant) and that resources and management
time are concentrated on controlling and improving them.
The identification of significant environmental aspects needs to take account of the
legislative, regulatory and other environmental requirements that affect the
organisation. These may be pollution control permits, laws and regulations relating
to the disposal of waste, or contractual requirements which specify environmental
criteria required by customers of the organisation. For each of these significant
environmental aspects, it is important that the EMS is set up to provide assurance to
management and others who might have an interest (e.g. environmental regulators
and customers), that they are being properly managed and the organisation is able to
comply with the requirements. It is good practice to consult with key stakeholders to
identify what their expectations are of your organisation’s environmental
performance. They might have useful information and the consultation process might
help to prioritise which are the most important issues to address in your EMS.
Environmental Review
When establishing an environmental management system, many organisations
undertake an environmental review. The environmental review is a systematic
process to:
determine the impacts the organisation has on the environment, and which of
them are significant;
understand which of its activities, products and services cause the significant
impacts;
know which of its activities, products and services are covered by environmental
legislation and regulations, whether it is complying with them and whether this
can be sustained on an ongoing basis;
know the extent to which it is controlling its significant environmental aspects and
whether effective controls are already in place; and
be in a position to develop objectives and targets for environmental improvement
and implement additional operational controls where they are necessary.
An easy way to get started on the environmental review is to map out the boundaries
of the EMS and highlight areas where there are environmental considerations (this is
referred to as Eco-Mapping). These could include internal and external drainage
plans, chemical storage points, location of waste skips, chimney stacks from boilers
and the nearest neighbours. Alternatively, if the EMS doesn’t lend itself to being
identified on a map (this is particularly the case for service organisations), a process
flow diagram highlighting inputs and outputs might be more appropriate.
The EMS should address direct and indirect environmental aspects. Direct aspects
are those caused as a direct result of the organisation’s operations, whereas indirect
aspects are those over which the organisation has influence, but no direct control.
Examples of environmental aspects include:
emissions to air;
releases to water;
disposal of waste and contamination of land;
use of energy, raw materials and natural resources;
land use and habitat loss;
disposal of the organisation’s products by customers; and
environmental performance of contractors and suppliers.
Consideration should be given to impacts caused during normal and abnormal
operating conditions and periods of maintenance and shutdown, and to significant
environmental impacts that could occur during emergencies. Once impacts have
been identified, their significance should be evaluated.
Assessment of significance
Assessing the significance of an environmental impact is one of the most difficult
parts of environmental management. There are many different tools and techniques
and, frequently, more than one approach can be used for a given situation. In many
circumstances, professional judgement will play an important role in determining how
to address significance and this can be helped through consultation with appropriate
stakeholders. The significance of an environmental impact can be assessed through
consideration of:
size, nature, frequency, likelihood and duration of the environmental impact;
the sensitivity of the receiving environment and the extent to which the impact is
reversible;
the extent to which the impact (or the activity, product or service which causes it)
is covered by environmental laws and regulations, or contractual requirements;
and
the importance of the impact to interested parties e.g. employees, neighbours,
regulators.
It is important that the criteria for evaluating significance are clearly defined and that
the procedure and outcome are capable of being replicated by someone else. Some
organisations develop risk matrices to help them evaluate the significance of an
environmental impact and to prioritise its relative importance; however, care should
be taken to ensure that all significant impacts are identified and that there is a robust
means of allocating the scores.
Operational control, targets and objectives
The results of the environmental review and the evaluation of the significance of the
environmental impacts are used to identify operational control measures and to set
objectives and targets for environmental improvement. Objectives and targets need
to relate to the organisation’s environmental policy and its environmental aspects. All
significant environmental aspects will require operational controls to ensure that
actions are carried out as planned and some of them will require objectives and
targets for improvement.
Objectives are broad-based environmental goals that the organisation sets itself for
environmental management and improvement. They may relate to a specific
environmental issue, for example:
to reduce the overall amount of solid waste produced over the next five years by
25%; or
to manage issues which will help to deliver the policy eg to ensure that all
employees receive appropriate environmental training by the end of the financial
year.
Targets are detailed performance requirements that need to be met in order to
achieve the objectives. A number of targets might be required to achieve a
particular objective. In some cases, objectives and targets might relate to the need
for further research and analysis on how to achieve improvements. Where possible,
objectives and targets should be SMART Specific, Measurable, Achievable,
Relevant and Time-related. This will help to track progress and ensure that
achievements are being realised.
Environmental programme
The environmental programme turns the environmental objectives and targets into
practical actions that can be taken to improve the organisation’s environmental
performance. The programme should identify individual responsibilities and the
means to achieve the defined objectives and targets within the specified time scales.
It should translate the commitment to continual environmental improvement set out in
the environmental policy into practical actions.
Structure and responsibilities
The organisation’s management will need to assign tasks to people so that everyone
knows what has to be done. It is vital, if the system is to operate effectively, to know
who does what, how, when and with what authority.
Whatever the size of the organisation, the activities of all employees will have an
impact on the environment. Directly or indirectly, significant or small, everyone can
contribute positively by innovating with new ideas, changing behaviour and involving
other people. This will require information, training and the development of new
skills. Different people in the organisation will need different types and levels of
training: some will require general environmental awareness training; others training
as auditors; the design team might need training on how to integrate environmental
considerations into new product designs. The key is to make sure that people are
given the knowledge and skills to fulfil their roles in the EMS and to be able to
achieve the environmental targets and objectives they have been assigned
responsibility for.
Communication
An EMS relies on good communications for it to be effective. Internal communication
needs to ensure that people are kept up to date with how progress is being made
against environmental objectives and targets, and that they are able to influence the
development of the EMS and environmental improvement programmes. External
communications help to ensure that stakeholders are kept informed of the
organisation’s progress and can be engaged in the improvement process.
Procedures and documentation
The EMS must be documented and procedures need to be established to ensure that
everyone knows how the system operates and what is required. Documents should
be kept up to date and controlled so that only the most recent versions are available
for use. Procedures should be established to ensure that activities are carried out in
the appropriate manner.
Contrary to popular belief, ISO 14001 doesn’t require extensive documentation.
Long narrative procedures may be required in some circumstances, but a flow
diagram might be equally effective in ensuring that a task is carried out properly.
Wherever possible, organisations should build on existing systems and integrate
environmental issues into them, rather than developing them separately.
Monitoring and audit
Information on the environmental performance of the organisation is essential if it is
to track progress against its environmental objectives and targets. Without reliable
and robust data, it can not be sure that it is in control of its environmental
performance, or that performance is improving as intended. In many cases the
organisation will already be carrying out measuring and monitoring activities, for
example as a requirement of a pollution control licence, and should build on these in
its EMS.
One of the important requirements in ISO 14001 is for organisations to carry out a
periodic evaluation of legal compliance. This is a key task, which will help to inform
the organisation on its performance against environmental laws and regulations and
provide information on whether it is adhering to its environmental policy. The
frequency with which the organisation carries out the periodic evaluation should
depend on the potential environmental impacts of the activity, with the most
significant being checked more often than those of lesser importance. However, it is
advisable to ensure that compliance checks are carried out at least on an annual
basis.
Auditing helps to determine whether the planned elements of the EMS are being
implemented as intended and that the EMS is functioning as planned. It also
provides information to management on the overall performance of the system.
Further information on environmental auditing can be found in ISO 19011:2002
Guidelines for quality and/or environmental management systems auditing or in
Annex II of the EMAS Regulation 761/2001.
Management review
The EMS operates as a cyclical process of identifying, improving and checking.
Periodic reviews by management ensure that the EMS is achieving the desired
outcomes and that the environmental policy is being implemented. It will also provide
a means for management to review the organisation’s environmental performance
trends to ensure that performance is being improved and to instigate changes to the
system as necessary.
EMS certification and accreditation
Organisations may decide to have an external body confirm that their EMS meets the
requirements of ISO 14001, this is known as certification. Certification is not
mandatory, ISO 14001 does allow organisations to self-certify that they have met all
of the requirements of the standard. However, there are a number of benefits that
can be gained by an organisation having its EMS externally certified, including:
confidence that the EMS meets recognised requirements and standards;
a means of maintaining momentum and helping to keep the EMS alive’ and
dynamic and driving forward the process of continual improvement;
a fresh pair of eyes to review the EMS and the way that it functions; and
the potential for recognition for their achievements from third parties, such as
customers and environmental regulators.
Whilst organisations use ISO 14001 as the specification for the EMS, certification
bodies use ISO Guide 66 (ISO, 2003) as the specification for how they should
operate. ISO Guide 66 is being revised and is scheduled to be published as ISO
17021 'General Requirements for Bodies Providing Assessment and Certification of
Management Systems', in 2006.
In order to ensure that certification bodies undertake their EMS assessments in a
similar and comparable way and that certificates issued by different certification
bodies are equivalent, a process of accreditation has been established. National
accreditation bodies undertake assessments to ensure that certification bodies carry
out their assessments appropriately and use competent people. In the UK, the
United Kingdom Accreditation Service (UKAS) is the national accreditation body, for
further information go to www.ukas.com.
An International Accreditation Forum (IAF) has been established to ensure consistent
standards between accreditation bodies, which is achieved through a process of peer
review. The IAF has published guidance to help participating accreditation bodies
undertake their work (IAF, 2001). Accredited certification to ISO 14001 is usually the
only form of recognition that is given by customers and regulators, so you should
check that your certification body is accredited through the IAF process.
Further Information
BSI (1992) 'BSI 7750, Specification for Environmental Management systems', British
Standards Institution, London
BSI (2003) 'BS 8555, Environmental Management Systems specification and guidance for
use', British Standards Institution, London.
EC (1993) 'Council Regulation (EEC) 1836/1993 of 29 June 1993 allowing voluntary
participation by industrial companies in the industrial sector in a Community eco-management
and audit scheme', Official Journal of the European Community L168 10/7/93,
Brussels
EU (2001) 'European Parliament and the Council of the European Union Regulation
761/2001 allowing voluntary participation by organisations in a Community eco-management
and audit scheme (EMAS)', Official Journal of the European Communities L114/1 24/4/2001,
Brussels
http://europa.eu.int/comm/environment/emas/index_en.htm
IAF (2001) 'Guidelines on the accreditation of certification bodies for EMS', International
Accreditation Forum, www.iaf.nu, Australia,
IEMA (2004) Further information on the Institute of Environmental Management and
Assessment as the UK EMAS Competent Body is available at www.iema.net and
www.emas.org.uk . ISO environmental standards can be purchased from
www.iema.net/shop
ISO (1996) 'ISO 14001, Environmental Management Systems specification and guidance
for use', International Standards Organisation, Geneva.
ISO (2003) 'ISO Guide 66, General requirements for bodies operating assessment and
certification/registration of environmental management systems', International Standards
Organisation, Geneva
ISO/DIS (2003) 'ISO/DIS 14001, Environmental Management Systems specification and
guidance for use', International Standards Organisation, Geneva.
ISO (2002) 19011, Guidelines for quality and/or environmental management systems
auditing’, International Standards Organisation, Geneva.
This e-briefing is part of a web-based resource centre provided by the Institute of
Environmental Management and Assessment (IEMA) with support from LGC and
DTI.