If safety instructions state something SHOULD be done, how is this interpreted?

When safety instructions indicate that something SHOULD be done, this is typically interpreted as a recommendation. The term "should" implies that the action is advisable under the given circumstances but is not legally mandated or strictly necessary. For example, a safety instruction stating that personal protective equipment (PPE) should be worn suggests that doing so significantly enhances safety, even though there may be some situations where it could be argued that wearing it is not obligatory.

This contrasts with a phrase like "must" or "shall," which would indicate a strict requirement, leaving no room for discretion. Therefore, the understanding of "should" emphasizes a best practice approach rather than an absolute rule, guiding individuals to consider their safety but leaving some latitude regarding compliance. Such an interpretation encourages adherence to safety protocols while recognizing that certain scenarios might warrant deviation from the instruction based on specific conditions or judgment.