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The hierarchy of controls places engineering solutions above administrative controls and PPE. Noise exposure is best managed by eliminating or reducing it at the source—installing mufflers, vibration-damping, isolation enclosures, or purchasing quieter tools. Double hearing protection provides attenuation but does not reduce environmental noise. Rotation reduces exposure time but not intensity. Posting signs alerts workers but does not lower hazard levels. An STSC ensures exposure assessments (dosimetry, area monitoring) are conducted, compares results to permissible exposure limits, and works with management to engineer solutions. When residual exposure remains, a hearing conservation program mandates audiometric testing, training, and proper PPE. Emphasizing engineering controls first reflects STSC principles of industrial hygiene, prioritizing elimination or reduction before reliance on PPE. This approach prevents long-term hearing loss and demonstrates commitment to sustainable worker health.