The American Industrial Hygiene Association (AIHA) recently released remarks in response to OSHA request for comments on the proposed rule to adapt the United Nations’ Globally Harmonized System of Classification and Labelling of Chemicals (GHS).

In its responses, AIHA expresses support for the Hazard Communication Standard (HCS) modification and its necessity in the workplace

“We applaud the agency for taking this step in proposing this rule,” stated AIHA President Cathy Cole, CIH, CSP, in an accompanying letter to OSHA.

The recommendations provided by AIHA specifically focus on hazard classification, chemical labeling, Safety Data Sheets (SDSs), labeling language modifications and definitions, and the scheduling of employee training once these changes are implemented. In its comments on the proposal.

AIHA emphasizes its support of the following:
  • The adoption of the detailed GHS criteria and weight of evidence approach to hazard evaluation and classification;
  • The approach OSHA has taken to require the GHS precautionary statements to be on HCS labels;
  • The modification of the language required for signs and labels to bear the same hazard statements that are required for all chemicals of the same classification;
  • The immediate training of employees upon the issue of the final standard. AIHA also conveyed its support of the efforts of OSHA to work with the international community in the development of criteria for combustible dust as part of the GHS regulations and encouraged the proposed development of a database of classifications.

In addition to supporting many parts of OSHA’s proposal, AIHA suggested enhancements to certain sections, such as an inclusion of a non-mandatory appendix to the HCS that contains reference to the Threshold Limit Values (TLVs) and other occupational exposure limits like Workplace Environmental Exposure Levels (WEELs).