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EPA on Friday, Aug. 21, 2009, withdrew two significant new
use rules (SNURs) for nano materials which were the subject of premanufacture
notices (PMNs). The two chemicals are multi-walled carbon nanotubes (PMN
P-08-177) and single-walled carbon nanotubes (PMN P-08-328).
The agency originally published the SNURs using direct final rulemaking procedures. The EPA is now withdrawing them due to its reception of a notice of intent to submit adverse comments on these rules. This is required under the expedited SNUR rulemaking process.
The EPA said in the Federal Register that it intends to publish, under separate notice and comment rulemaking procedures, proposed SNURS for these two chemical substances.
This final rule became effective on Friday, Aug. 21, 2009.
The agency originally published the SNURs using direct final rulemaking procedures. The EPA is now withdrawing them due to its reception of a notice of intent to submit adverse comments on these rules. This is required under the expedited SNUR rulemaking process.
The EPA said in the Federal Register that it intends to publish, under separate notice and comment rulemaking procedures, proposed SNURS for these two chemical substances.
This final rule became effective on Friday, Aug. 21, 2009.
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