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Hierarchy of Control

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					                           Hierarchy of Control: The organization shall implement and
maintain a process for achieving feasible risk reduction based upon the following preferred order
of controls:

   A.   Elimination;
   B.   Substitution of less hazardous materials, processes, operations or equipment;
   C.   Engineering controls;
   D.   Warnings;
   E.   Administrative control; and
   F.   PPE.

Feasible application of this hierarchy of controls shall take into account:

   a.   the nature and extent of the risks being controlled;
   b.   the degree of risk reduction desired;
   c.   the requirements of applicable local, federal and state statutes, standards and regulations;
   d.   recognized best practices in
   e.   available technology;
   f.   cost-effectiveness; and
   g.   internal organization standards.

Controlling exposures to occupational hazards is the fundamental method of protecting workers.
Traditionally, a hierarchy of controls has been used as a means of determining how to implement
feasible and effective controls. One representation of this hierarchy can be summarized as
follows:
      Elimination
    Substitution
    Engineering controls
    Administrative controls
    Personal protective equipment
The idea behind this hierarchy is that the control methods at the top of the list are potentially
more effective and protective than those at the bottom. Following the hierarchy normally leads to
    the implementation of inherently safer systems, ones where the risk of illness or injury has been
    substantially reduced.
    Elimination and substitution, while most effective at reducing hazards, also tend to be the most
    difficult to implement in an existing process. If the process is still at the design or development
    stage, elimination and substitution of hazards may be inexpensive and simple to implement. For
    an existing process, major changes in equipment and procedures may be required to eliminate or
    substitute for a hazard.
    Administrative controls and personal protective equipment are frequently used with existing
    processes where hazards are not particularly well controlled. Administrative controls and
    personal protective equipment programs may be relatively inexpensive to establish but, over the
    long term, can be very costly to sustain. These methods for protecting workers have also proven
    to be less effective than other measures, requiring significant effort by the affected workers.
    Engineering controls are used to remove a hazard or place a barrier between the worker and the
    hazard. Well-designed engineering controls can be highly effective in protecting workers and
    will typically be independent of worker interactions to provide this high level of protection. The
    initial cost of engineering controls can be higher than the cost of administrative controls or
    personal protective equipment, but over the longer term, operating costs are frequently lower,
    and in some instances, can provide a cost savings in other areas of the process.
    Which is Separate to Hierarchy of control measures

    The hierarchy of control is a sequence of options which offer you a number of ways to approach
    the hazard control process. Here is a list, with typical examples. Work your way down the list,
    and implement the best measure possible for your situation.

    Eliminate the hazard

     remove a noisy machine
     cease in-house operations of hazardous work.

    If this is not practical, then:

    Substitute the hazard with a lesser risk

     replace hazardous electrics with hydraulics
     purchase less hazardous machinery.

    If this is not practical, then:

    Isolate the hazard

     install guards, screens or enclosures
     install roll-over protection on mobile powered plant.

    If this is not practical, then:
    Use engineering controls

     redesign the task, to enable it to be carried out in a different way.

    If this is not practical, then:

    Use administrative controls

     set up entry permits to operate work systems
     install warning signs or danger tags.

    If this is not practical, then:

    Use personal protective equipment

     safety belts and harnesses, fall-arrest systems
     industrial safety gloves and footwear.

				
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