Work in compressed air and underground tunnelling.

OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.

November 29, 1983

W. H. Phoon, Director
Industrial Health Division
Ministry of Labour Nos. 5 & 7
Halifax Road
Singapore 0922
Republic of Singapore

Dear Dr. Phoon:

This is in reply to your letter of November 10, 1983, addressed to Dr. Ralph E. Yodaiken, Director, Office of Occupational Medicine, Occupational Safety and Health Administration (OSHA), U. S. Department of Labor, requesting information pertaining to work in compressed air and underground tunnelling.

Variance

  • Publication Date:
  • Publication Type:
  • Fed Register #:
    52:12629-32
  • Title:
  • Abstract:
Abstract:
Application by Tomaro Contractors, Inc. for a permanent variance and
an interim order from the Decompression Tables, Appendix A to
Subpart S of Parts 1926.800 through 1926.804 which concern
compressed air. The applicant has requested that it be authorized to
substitute a decompression table using oxygen, introduced via
pressure demand respirators, as the gaseous medium in lieu of
compressed air. The interim order is denied until a decision is
rendered on the application for a variance.