MoreOn Nov. 5, 2008, the EPA issued a direct final significant
new use rule (SNUR) under Section 5(a)(2) of the Toxic Substances Control Act
(TSCA) for 56 chemical substances which were the subject of pre-manufacture
notices.
Four of these chemical substances will be subject to TSCA Section 5(e) consent orders issued by the agency. Section 5(e) requires persons who intend to manufacture, import, or process any of these 56 chemical substances for an activity that is designated as a significant new use by this rule to notify the agency at least 90 days before commencing that activity.
The required notification will provide the agency with an opportunity to evaluate the intended use and, if necessary, to prohibit or further limit the activity before it occurs. Importantly, two nanoscale substances are included in the final rule. One is siloxane modified silica nanoparticles (PMN No. P-05-673) and the other is siloxane modified alumina nanoparticles (PMN No. P-05-687).
In the rule, EPA expresses concern with lung effects and dermal exposures. The rule will become effective Jan. 5, 2009, without further notice, unless the EPA receives written adverse or critical comments, or notice of intent to submit adverse or critical comments before Dec. 5.
The rule has been posted to the Federal Register: 73 Fed. Reg. 65743.
Four of these chemical substances will be subject to TSCA Section 5(e) consent orders issued by the agency. Section 5(e) requires persons who intend to manufacture, import, or process any of these 56 chemical substances for an activity that is designated as a significant new use by this rule to notify the agency at least 90 days before commencing that activity.
The required notification will provide the agency with an opportunity to evaluate the intended use and, if necessary, to prohibit or further limit the activity before it occurs. Importantly, two nanoscale substances are included in the final rule. One is siloxane modified silica nanoparticles (PMN No. P-05-673) and the other is siloxane modified alumina nanoparticles (PMN No. P-05-687).
In the rule, EPA expresses concern with lung effects and dermal exposures. The rule will become effective Jan. 5, 2009, without further notice, unless the EPA receives written adverse or critical comments, or notice of intent to submit adverse or critical comments before Dec. 5.
The rule has been posted to the Federal Register: 73 Fed. Reg. 65743.
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