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TLV®/BEI® Resources


Physical Agents Under Study (TLV®-PA Committee)

ACGIH® has a procedure that provides the public with an indication of where those chemical substances and physical agents under study fall in the development process. Tier 1 indicates which chemical substances or physical agents may move forward as an NIC in the upcoming year. Tier 2 indicates which chemical substances or physical agents will not move forward in the upcoming year. For more information, please see the ACGIH® TLV®/BEI® Development Process.

Tier 1 (may move forward with an NIC proposal in 2009)

Electromagnetic Radiation and Fields

  • Sub-Radiofrequency and Static Electric Fields (added 5/17/2008)
  • Radiofrequency and Microwave Radiation
  • Ultraviolet Radiation
  • Lasers
  • Ionizing Radiation
Ergonomics
  • Introduction/Statement on Work-Related Musculoskeletal Disorders
  • Hand Activity Level (added 5/17/2008)
Thermal Stress
  • Heat Stress (added 5/17/2008)

Tier 2 (will not move forward with an NIC proposal in 2009)

Ergonomics

  • Hand-Arm Vibration
  • Localized Fatigue
  • Whole Body Vibration (added 5/17/2008)
Thermal Stress
  • Cold Stress
Physical Agents Removed from Under Study Effective 5/17/2008

Acoustic

Last update on 06/26/2008. Questions or problems? Please contact us. © 2008 American Conference of Governmental Industrial Hygienists, 1330 Kemper Meadow Drive, Cincinnati, Ohio 45240, 513-742-2020. ACGIH® and related marks are marks of the American Conference of Governmental Industrial Hygienists. All Rights Reserved. Terms of Access. ACGIH® Privacy Policy. Site Map.