If the identification tag on synthetic slings is missing or illegible, what must be done?

When the identification tag on synthetic slings is missing or illegible, the appropriate course of action is to remove it from service immediately. This is crucial because the identification tag contains important information about the sling, including its manufacturer, rated capacity, and usage instructions. Without this information, there's no way to ascertain the sling's safe working limits or ensure it has not been damaged or improperly used. Using a sling without a legible tag poses a significant safety risk, as it may lead to overloads or improper handling, which could result in accidents or injuries on the job site. Therefore, removing the sling from service protects both the personnel involved and the integrity of the rigging operation until the sling can be properly identified or replaced.