Standard Interpretations - Table of Contents|
| Standard Number:||1926.351(c)(6); 1926.453(b)(2)(xi); 1926.453(b)(2)(v); 1926.453(b)(2)(iii); 1926.453(b)(2)(vi)|
|OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at http://www.osha.gov.|
All ground connections shall be inspected to ensure that they are mechanically strong and electrically adequate for the required current.Section 1926.453(b)(2)(xi) states:
The insulated portion of an aerial lift shall not be altered in any manner that might reduce its insulating value.Therefore, it would be a violation of §1926.453(b)(2)(xi) if, in order to attain the "mechanically strong and electrically adequate" ground connection required in §1926.351(c)(6), an insulated portion of the aerial lift was damaged. Also, failure to attain such a ground would be a violation of §1926.351(c)(6).
A body belt shall be worn and a lanyard attached to the boom or basket when working from an aerial lift.Section 1926.453(b)(2)(iii) also states:
Belting off to an adjacent pole, structure, or equipment while working from an aerial lift shall not be permitted.In the scenario you describe, the observer from your company, while in the bucket also, is anchored to an external vertical life line that is secured to a water tank. Securing the observer to an adjacent structure is in violation of §1926.453(b)(2)(iii). However, in the scenario you describe the violation of §1926.453(b)(2)(iii) would be considered de minimis.1
[L]imited situations may exist where an adjacent structure poses no reasonably foreseeable risk of failure. For example, such an instance might arise where the adjacent structure is a completed building or a completed (i.e., fully bolted-up) skeletal steel structure. In those instances, OSHA would consider the violation of §1926.453(b)(2)(iii) to be "de minimis" and no citation would be issued.The water tank that you describe in your letter would also be considered a structure that poses no reasonably foreseeable risk of failure. Therefore, we would consider the violation of §1926.453(b)(2)(iii) to be de minimis.
Boom and basket load limits specified by the manufacturer shall not be exceeded.You must ensure that, once the observer enters the aerial lift bucket with the two other workers, this requirement is not violated.
|Standard Interpretations - Table of Contents|