What type of boots may be required if sharp objects are present as a hazard?

Puncture-resistant boots are essential when sharp objects are present as a hazard because they are specifically designed to protect the feet from penetration by sharp items such as nails, glass, or metal shards. These boots feature an added protective layer in the sole or the upper part that can withstand punctures, thereby significantly reducing the risk of injury in environments where these hazards are present.

While steel-toed boots are also important for protecting against heavy impacts and compression injuries, they are not primarily focused on puncture protection. Waterproof boots provide moisture protection but do not offer puncture resistance. Insulated boots are designed for cold weather protection, which does not address sharp object hazards directly. Therefore, for the specific concern of sharp objects, puncture-resistant boots are the appropriate choice.