#	Standard Interpretations
1	10/31/2006 - 1910.1051(e) - Clarification of the Hexavalent Chromium Final Rule
2	12/07/1999 - 1910.1051(d)(1)(iv) - Exposure monitoring requirements under the coke oven emissions standard
3	10/06/1995 - 1910.1051 - 8-hour total weight average (TWA) permissible exposure limit (PEL).