How to Perform a Risk Assessment

Why is it Important?

Risk assessments are essential to identify hazards and risks that may potentially cause harm to workers. Identifying hazards by using the risk assessment process is a key element in ensuring the health and safety of your employees and customers. OSHA requires businesses to conduct risk assessments. According to regulations set by OSHA, assessing hazards or potential risks will determine the personal protective gears and equipment a worker may need for their job.

Risk Analysis Framework

When Do You Perform a Risk Assessment?

Beyond complying with legislative requirements, the purpose of risk assessments is to eliminate operational risks and improve the overall safety of the workplace. It is the employer’s responsibility to perform risk assessments when:

• new processes or steps are introduced in the workflow;
• changes are made to the existing processes,
• equipment, and tools; or new hazards arise.

Risk assessments are also performed by auditors when planning an audit procedure for a company.

3 Types

HSE distinguishes three general risk assessment types:

Large Scale Assessments

This refers to risk assessments performed for large scale complex hazard sites such as the nuclear, and oil and gas industry. This type of assessment requires the use of an advanced risk assessment technique called Quantitative Risk Assessment (QRA).

Required specific assessments

This refers to assessments that are required under specific legislation or regulations, such as the handling of hazardous substances (according to COSHH regulations, 1998) and manual handling (according to Manual Handling Operations Regulations, 1992).

General assessments

This type of assessment manages general workplace risks and is required under the management of legal health and safety administrations such as OSHA and HSE.

Example

Here is an example of a completed risk assessment. See more risk assessment examples in various industries.

How to Perform Risk Assessment in 5 Steps

Below are the 5 steps on how to efficiently perform risk assessments:

1. Identify hazards

Survey the workplace and look at what could reasonably be expected to cause harm. Identify common workplace hazards. Check the manufacturer’s or suppliers’ instructions or data sheets for any obvious hazards. Review previous accident and near-miss reports.

2. Evaluate the risks

Risk evaluation helps determine the probability of a risk and the severity of its potential consequences. To evaluate a hazard’s risk, you have to consider how, where, how much, and how long individuals are typically exposed to a potential hazard. Assign a risk rating to your hazards with the help of a risk matrix.

3. Decide on control measures to implement

After assigning a risk rating to an identified hazard, it’s time to come up with effective controls to protect workers, properties, civilians, and/or the environment. Follow the hierarchy of controls in prioritizing implementation of controls.

4. Document your findings

It is important to keep a formal record of risk assessments. Documentation may include a detailed description of the process in assessing the risk, an outline of evaluations, and detailed explanations on how conclusions were made.

5. Review your assessment and update if necessary

Follow up with your assessments and see if your recommended controls have been put in place. If the conditions in which your risk assessment was based change significantly, use your best judgment to determine if a new risk assessment is necessary.

Risk Assessment Tools and Techniques

There are options on the tools and techniques that can be seamlessly incorporated into a business’ process. The four common risk assessment tools are: risk matrix, decision tree, failure modes and effects analysis (FMEA), and bowtie model. Other risk assessment techniques include the what-if analysis, failure tree analysis, Layer of Protection Analysis (LOPA) and Hazard and Operability (HAZOP) analysis.

How to use a Risk Matrix?

A risk matrix is often used to measure the level of risk by considering the consequence/ severity and likelihood of injury to a worker after being exposed to a hazard. Two key questions to ask when using a risk matrix should be:

1. Consequences: How bad would the most severe injury be if exposed to the hazard?
2. Likelihood: How likely is the person to be injured if exposed to the hazard?

The most common types are the 3×3 risk matrix, 4×4 risk matrix, and 5×5 risk matrix.

How to Assess Consequences?

It is common to group the injury severity and consequence into the following four categories:

• Fatality – leads to death
• Major or serious injury – serious damage to health which may be irreversible, requiring medical attention and ongoing treatment
• Minor injury – reversible health damage which may require medical attention but limited ongoing treatment). This is less likely to involve significant time off work.
• Negligible injuries – first aid only with little or no lost time.

How to Assess Likelihood?

It is common to group the likelihood of a hazard causing worker injury into the following four categories:

• Very likely – exposed to hazard continuously.
• Likely – exposed to hazard occasionally.
• Unlikely – could happen but only rarely.
• Highly unlikely – could happen, but probably never will.

We recommend OSHA’s great learning resources in understanding how to assess consequence and likelihood in your risk assessments.

Risk Assessment Training

“Safety has to be everyone’s responsibility… everyone needs to know that they are empowered to speak up if there’s an issue.” – Captain Scott Kelly, at the SafetyCulture Virtual Summit.

A good and effective hazard identification and risk assessment training  should orient new and existing workers on various hazards and risks that they may encounter. It should also be able to easily walk them through safety protocols. With today’s technology like SafetyCulture’s Training feature, organizations can create and deploy more tailored-fit programs based on the needs of their workers.