Which of the following is NOT a recommended PPE for signal persons?

The selection of PPE, or personal protective equipment, is vital for ensuring the safety of signal persons in various work environments, particularly those involving heavy machinery and construction activities. Each type of PPE serves a specific purpose related to the potential hazards present on site.

High-visibility vests are critical for signal persons as they enhance visibility to operators and nearby workers, especially in busy work zones. Steel-toed boots provide essential foot protection from heavy objects that could drop and cause injury. Hard hats offer crucial head protection against falling objects or overhead hazards commonly found in construction areas.

While ear muffs are important personal protective equipment in many noisy environments, they are not as universally essential for signal persons as the other items listed. The primary function of a signal person is to maintain clear communication and visibility with the operator of heavy machinery, where high visibility and protection from physical hazards take precedence. Therefore, ear muffs may not be considered a fundamental requirement for all signal person roles, making that option the one that is not typically recommended.