Alert: Due to routine maintenance on the OSHA website, some pages may be temporarily unavailable.
To report an emergency, file a complaint with OSHA or ask a safety and health question, call 1-800-321-6742 (OSHA).

Logging » Credits


Technical Editorial Board


  • OSHA Directorate of Technical Support and Emergency Management; Washington, DC

Other Members:

  • Robert Hallenbeck, Washington State (WISHA)
  • Barry Jones, Oregon State
  • Ed LaFavor, Minnesota Department of Labor and Industry, OSHA

Special thanks to the following for providing materials including text and/or images used in this eTool.:

Past Contributors:

  • Earl Cook, OSHA
  • Bob Curtis, OSHA
  • Paul Cyr, OSHA
  • David Ditommaso, OSHA
  • Emil Golias, OSHA
  • Jim Taetsch
  • Richard Terrill, OSHA
  • Russelle McCollough, OSHA
  • Jimmy Roberts, OSHA