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Table 1: Determining if a job is a caution zone job
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A "caution zone job" is a job in which a worker's typical work activities meet one or more of the physical risk factors and levels listed in Table 1. If one or more physical risk factor exceeds the levels listed in Table 1, then the job is a caution zone job and the employer should provide the worker with ergonomics awareness training and perform a hazard assessment using the checklist presented in Table 2.
Awkward Body Positions:
Table 1 Awkward Body Positions -- Potential Physical Risk Factor(s)
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(1) Does the physical risk factor include working with the hand(s) above the head, or the elbow(s) above the shoulder for more than 2 hours total per day?<br><br>-- and/or --<br><br>(2) Working with the neck or back bent more than 30 degrees (without support and without the ability to change posture) for more than 2 hours total per day?<br><br>-- and/or --<br><br>(3) Squatting for more than 2 hours total per day?<br><br>-- and/or --<br><br>(4) Kneeling for more than 2 hours total per day?
Table 2 Hazard assessment checklist -- Awkward Body Positions/Body Part: Shoulders
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Does the physical risk factor include working with the hand(s) above the head or the elbow(s) above the shoulder(s) for more than 4 hours total per day?
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Does the physical risk factor include repetitively raising the hand(s) above the head or the elbow(s) above the shoulder(s) more than once per minute for more than 4 hours per day?
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Table 2 Hazard assessment checklist -- Awkward Body Positions/Body Part: Neck
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Does the physical risk factor include working with the neck bent more than 45 degrees (without support or the ability to vary posture) for more than 4 hours total per day?
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Table 2 Hazard assessment checklist -- Awkward Body Positions/Body Part: Back
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Does the physical risk factor include working with the back bent forward more than 30 degrees (without support or the ability to vary posture) for more than 4 hours total per day?
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Does the physical risk factor include Working with the back bent forward more than 45 degrees (without support or the ability to vary posture) for more than 2 hours total per day?
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Table 2 Hazard assessment checklist -- Awkward Body Positions/Body Part: Knees
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Does the physical risk factor include squatting for more than 4 hours total per day?
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Does the physical risk factor include Kneeling for more than 4 hours total per day?
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High Hand Force:
Table 1 High Hand Force -- Potential Physical Risk Factor(s)
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Does the physical risk factor include pinching an unsupported object(s) weighing 2 lbs. or more per hand, or pinching with a force of 4 lbs. or more per hand (comparable to pinching half a ream of paper) for more than 2 hours total per day?<br><br>-- and/or --<br><br>Does the physical risk factor include gripping an unsupported object(s) weighing 10 lbs. or more per hand, or gripping with a force of 10 lbs. or more per hand (comparable to clamping light duty automotive jumper cables onto a battery)?
Table 2 Hazard assessment checklist -- High Hand Force/Body Part: Arms, Wrists, Hands
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Does the physical risk factor include pinching an unsupported object(s) weighing 2 lbs. or more per hand, or pinching with a force of 4 lbs. per hand (comparable to pinching half a ream of paper) combined with highly repetitive motion for a duration greater than 3 hours total per day?
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Does the physical risk factor include pinching an unsupported object(s) weighing 2 lbs. or more per hand, or pinching with a force of 4 lbs. per hand (comparable to pinching half a ream of paper) combined with wrists bent in flexion 30 degrees or more, or in extension 45 degrees or more, or in ulnar deviation 30 degrees or more for a duration greater than 3 hours total per day?
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Does the physical risk factor include pinching an unsupported object(s) weighing 2 lbs. or more per hand, or pinching with a force of 4 lbs. per hand (comparable to pinching half a ream of paper) without any other risk factors for a duration greater than 4 hours total per day?
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Does the physical risk factor include gripping an unsupported object(s) weighing 10 lbs. or more per hand, or gripping with a force of 10 lbs. or more per hand (compared to claiming light duty automotive jumper cables onto a battery) combined with highly repetitive motion for a duration of more than 3 hours total per day?
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Does the physical risk factor include gripping an unsupported object(s) weighing 10 lbs. or more per hand, or gripping with a force of 10 lbs. or more per hand (compared to claiming light duty automotive jumper cables onto a battery) combined with wrists bent in flexion 30 degrees or more, or in extension 45 degrees or more, or in ulnar deviation 30 degrees or more?
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Does the physical risk factor include gripping an unsupported object(s) weighing 10 lbs. or more per hand, or gripping with a force of 10 lbs. or more per hand (compared to claiming light duty automotive jumper cables onto a battery) combined with no other risk factors for more than 4 hours total per day?
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Highly Repetitive Motion
Table 1 Highly Repetitive Motion -- Potential Physical Risk Factor(s)
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(1) Does the physical risk factor include repeating the same motion with the neck, shoulders, elbows, wrists, or hands (excluding keying activities) with little or no variation every few seconds for more than 2 hours total per day?<br><br>-- and/or --<br><br>(2) Performing intensive keying for more than 4 hours total per day?
Table 2 Hazard assessment checklist -- Highly Repetitive Motion/Body Part: Neck, Shoulders, Elbows, Wrists, Hands
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Does the physical risk factor include using the same motion with little or no variation every few seconds (excluding keying activities) combined with no other risk factors for a duration more than 6 hours total per day?
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Does the physical risk factor include using the same motion with little or no variation every few seconds (excluding keying activities) combined with wrist bent in flexion 30 degrees or more, or in extension 45 degrees or more, or in ulnar deviation 30 degrees or more AND high, forceful exertions with the hand(s) for a duration of more than 2 hours total per day?
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Does the physical risk factor include using intensive keying combined with awkward posture, including wrists bent in flexion 30 degrees or more, or in extension 45 degrees or more, or in ulnar deviation 30 degrees or more for a duration of more than 4 hours total per day?
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Does the physical risk factor include using intensive keying combined with no other risk factors for a duration of more than 7 hours total per day?
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Heavy, Frequent, or Awkward Lifting
Table 1 Heavy, Frequent, or Awkward Lifting -- Potential Physical Risk Factor(s)
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(1) Lifting objects weighing more than<br> a) 75 lbs. once per day; or<br> b) 55 lbs more than 10 times per day<br><br>-- and/or --<br><br>(2) Lifting objects weighing more than 10 lbs if done more than twice per minute for more than 2 hours total per day<br><br>-- and/or --<br><br>(3) Lifting objects weighing more than 25 lbs above the shoulders, below the knees, or at arm's length more than 25 times per day
Table 2 Hazard assessment checklist -- Heavy, Frequent, or Awkward Lifting:
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Is this a hazard? Use Heavy, Frequent or Awkward Lifting Addendum. Compare the Weight Limit calculated in Step 4 with the Actual Weight lifted from Step 1. If the Actual Weight lifted is greater than the Weight Limit calculated, then the lifting is an MSI hazard and should be reduced below the hazard level or to the degree technologically and economically feasible.
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