Regulacje i polityka gospodarcza · 11.09.2006

Reportable Quantity Adjustment for Isophorone Diisocyanate

The Environmental Protection Agency (EPA) is proposing to adjust the reportable quantity (RQ) for Isophorone Diisocyanate (IPDI). Reportable quantities for many of the Extremely Hazardous Substances (EHSs) under the Emergency Planning and Community Right-to-Know Act (EPCRA) were adjusted to their threshold planning quantities (TPQ) in a final rule on May 7, 1996. On September 8, 2003, EPA modified the TPQ for IPDI to 500 pounds. However, EPA inadvertantly omitted an RQ adjustment for this substance. Therefore, EPA is now proposing to adjust the RQ for IPDI to be 500 pounds. In the "Rules and Regulations" section of the Federal Register, we are revising the RQ for Isophorone Diisocyanate to 500 pounds without prior proposal because we view the revision as noncontroversial and anticipate no adverse comment. We have explained our reasons for this approach in the preamble to the direct final rule. If we receive adverse comment on this revision, however, we will withdraw this direct final action and it will not take effect. We will address all public comments in a subsequent final rule based on this proposed rule. We will not institute a second comment period on this action. Any parties