OSHA 1910.120 access to employee exposure in medical records requires that all exposure reports be maintained for the employees length of employment plus an additional ________ year.

• A. 1
• B. 10
• C. 30
• D. 5

Answer: (C)

Exposure records must be kept for at least thirty years. OSHA 1910.1020 requires this long-term retention to preserve a worker’s exposure history for decades, which supports health evaluations, regulatory reviews, and potential claims given that some occupational diseases have long latency periods. Shorter timeframes (1, 5, or 10 years) wouldn’t guarantee the availability of exposure data when it’s needed. Note that medical records have a separate retention rule (duration of employment plus thirty years), but for exposure records the minimum is thirty years.