Noise Exposure Program (OSHA) Course

Lesson 1 • Physics of Sound and Noise

Covers frequency, amplitude, wavelength, and decibel scale fundamentals. Provides the acoustic vocabulary needed throughout the entire course.

Lesson 2 • Regulatory Framework Overview

Introduces the regulatory basis for noise exposure limits and employer obligations. Sets context for compliance requirements covered in later chapters.

Lesson 3 • How Noise Damages Hearing

Explains cochlear anatomy and the mechanisms of noise-induced hearing loss. Connects biological damage to workplace exposure scenarios.

Lesson 1 • Sound Level Meters

Covers meter types, weighting networks, and response settings. Learners select the correct meter configuration for each measurement scenario.

Lesson 2 • Instrument Calibration and Quality Assurance

Details pre- and post-survey calibration steps and documentation requirements. Ensures measurement data meets regulatory and scientific validity standards.

Lesson 3 • Measurement Strategy and Sampling Design

Teaches how to design a representative noise sampling plan for varied work environments. Guides selection of measurement locations, durations, and worker groups.

Lesson 1 • Exchange Rate and Dose Percentage

Covers the 5 dB and 3 dB exchange rate systems and their regulatory contexts. Learners convert between dose percentage and TWA equivalents.

Lesson 2 • Identifying Overexposed Workers

Applies calculated TWA and dose values to regulatory thresholds to flag at-risk employees. Prioritizes workers for immediate control and audiometric follow-up.

Lesson 3 • Uncertainty and Measurement Error

Addresses sources of measurement uncertainty and their impact on exposure decisions. Teaches conservative interpretation when data variability is high.

Lesson 1 • Hierarchy of Noise Controls

Introduces the control hierarchy: elimination, substitution, engineering, administrative, and PPE. Establishes the priority order for selecting effective interventions.

Lesson 2 • Engineering Control Methods

Details noise reduction techniques including isolation, damping, barriers, and equipment modification. Learners evaluate feasibility and expected noise reduction for each method.

Lesson 3 • Administrative Control Strategies

Covers job rotation, scheduling, and quiet zone designation to limit exposure duration. Learners design administrative programmes that complement engineering solutions.

Lesson 1 • Types of Hearing Protection Devices

Surveys earplugs, earmuffs, and canal caps with their attenuation characteristics. Learners distinguish device types appropriate for different noise environments.

Lesson 2 • Proper Fitting and Insertion Techniques

Provides step-by-step fitting instruction for earplugs and earmuffs. Correct fit is the single largest determinant of actual protection achieved.

Lesson 3 • HPD Selection, Care, and Replacement

Guides selection based on exposure level, comfort, and task compatibility. Covers inspection, cleaning, storage, and replacement criteria.

Lesson 1 • Audiometric Testing Fundamentals

Covers pure-tone audiometry principles, test frequencies, and audiogram interpretation basics. Establishes the clinical foundation for occupational hearing surveillance.

Lesson 2 • Audiometric Booth and Equipment Standards

Details background noise limits for test rooms and audiometer calibration requirements. Ensures test environment validity for regulatory compliance.

Lesson 3 • Referral and Follow-Up Procedures

Establishes criteria for referring workers to audiologists or physicians after abnormal results. Connects audiometric findings to control programme adjustments.

Lesson 4 • Baseline and Annual Audiograms

Explains timing requirements, pre-test quiet periods, and audiogram record retention. Learners schedule and document audiometric surveillance correctly.

Lesson 1 • Employee Training and Education

Covers required training content, frequency, and documentation for noise-exposed workers. Effective training drives HPD compliance and early symptom reporting.

Lesson 2 • Recordkeeping and Documentation

Details required records, retention periods, and employee access rights for HCP documentation. Accurate records demonstrate compliance during regulatory inspections.

Lesson 3 • Programme Evaluation and Continuous Improvement

Teaches metrics and audit methods to assess HCP effectiveness over time. Learners identify programme gaps and implement corrective actions systematically.

Lesson 1 • Maintaining Long-Term Compliance

Establishes systems for sustaining compliance as operations, equipment, and regulations change. Integrates compliance monitoring into routine safety management processes.

Lesson 2 • Self-Audit and Gap Analysis

Provides a structured self-audit methodology to identify compliance gaps before inspections. Learners use checklists to evaluate each HCP element against regulatory standards.

Lesson 3 • Citation Response and Abatement

Covers the process for responding to regulatory citations, contesting findings, and documenting abatement. Protects organisational interests while achieving genuine compliance.

Lesson 4 • Regulatory Inspection Process

Explains how regulatory inspections are initiated, conducted, and concluded. Learners understand inspector authority, document requests, and worker interview rights.