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Virginia regulations · Through 2026 Regular Session (effective July 1, 2026)

4VAC25-40-3310: Maximum concentrations

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Where this section sits in the code
  1. Title 4. Conservation And Natural Resources
  2. Agency 25. Department of Energy
  3. Chapter 40. Safety and Health Regulations for Mineral Mining
  4. Part XV. Safety and Health Regulations—Underground Only
  5. Article 3. Air Quality, Radiation and Physical Agents

Persons shall not be exposed to air containing concentrations of radon gas exceeding 1.0 working level in active areas.

Collected 2026-09-14T04:46:04Z. Source file · JSON

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