Environmental Protection Agency September 19, 2007 – Federal Register Recent Federal Regulation Documents

This action announces a plan for a series of research projects aimed at addressing the toxicological effects and dosimetry of amphibole asbestos-contaminated vermiculite from Libby, Montana (referred to here as Libby amphibole). Although available human data establish the toxicity of asbestos, and preliminary dose response analyses for Libby amphibole have been developed, these estimates can be refined by addressing some of the key uncertainties that exist due to gaps in our understanding or lack of quantitative descriptions of internal dosimetry and toxicological effects. This planned set of projects is aimed at addressing these gaps and providing tools for quantitative characterization, including a comparative analysis of the toxicity of Libby amphibole relative to asbestos fibers and asbestos- like mineral occurrences. Other key areas of research will also inform the risk assessment, including inherent toxicity of Libby amphibole relative to other forms of asbestos and differential susceptibility, including that of different life stages. EPA conducted an internal and external review of the research plan and has documented the responses to comments.

In compliance with the Paperwork Reduction Act (44 U.S.C. 3501 et seq.), this document announces that an Information Collection Request (ICR) has been forwarded to the Office of Management and Budget (OMB) for review and approval. This is a request to renew an existing approved collection. The ICR which is abstracted below describes the nature of the collection and the estimated burden and cost.

EPA is revoking certain tolerances for the insecticides amitraz and lindane; the herbicides atrazine, propachlor, and simazine; the plant growth regulator ethephon; and the fungicide ferbam. Also, EPA is modifying certain tolerances for the herbicide atrazine, propachlor, and simazine; the insecticide amitraz; the plant growth regulator ethephon; and the fungicide ferbam. In addition, EPA is establishing new tolerances for the herbicide atrazine and the plant growth regulator ethephon. The regulatory actions finalized in this document are in follow-up to the Agency's reregistration program under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), and tolerance reassessment program under the Federal Food, Drug, and Cosmetic Act (FFDCA) section 408(q).

EPA is revoking certain tolerances for the fungicides chloroneb and thiabendazole; the herbicide sulfosate; the defoliant thidiazuron; the insecticides cypermethrin, methidathion, and pirimiphos-methyl; and the soil microbiocide nitrapyrin. Also, EPA is modifying certain tolerances for the fungicides chloroneb and thiabendazole; the herbicides oxyfluorfen and tebuthiuron; the defoliants thidiazuron and tribuphos; the insecticides cypermethrin, methidathion, and pirimiphos-methyl; and the soil microbiocide nitrapyrin. In addition, EPA is establishing new tolerances for the fungicides chloroneb and thiabendazole; the herbicide oxyfluorfen; the defoliants thidiazuron and tribuphos; the insecticides cypermethrin, methidathion, and pirimiphos-methyl; and the soil microbiocide nitrapyrin. The regulatory actions finalized in this document are in follow-up to the Agency's reregistration program under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), and tolerance reassessment program under the Federal Food, Drug, and Cosmetic Act (FFDCA) section 408(q).

The National Advisory Committee for Acute Exposure Guideline Levels (AEGLs) for Hazardous Substances (NAC/AEGL Committee) is developing AEGLs on an ongoing basis to provide Federal, State, and local agencies with information on short-term exposures to hazardous substances. This notice provides a list of 37 hazardous substances for Proposed AEGL values, which are available for public review and comment. Comments are welcome on both the Proposed AEGL values and the Technical Support Documents in the public docket.

There will be a 4-day meeting of the Federal Insecticide, Fungicide, and Rodenticide Act Scientific Advisory Panel (FIFRA SAP) to consider and review the interpretation of the Ecological Significance of Atrazine Stream-Water Concentrations Using a Statistically-Designed Monitoring Program.

EPA is reopening the comment period for a notice of availability concerning implementation of the emerging pathogens and disinfection hierarchy guidance for antimicrobial products published in the Federal Register of July 25, 2007. This document reopens the comment period for an additional 60 days. The comment period is reopened because additional time has been requested by several pesticide entities to prepare detailed comments on the planned implementation.

This notice announces the initial filing of pesticide petitions proposing the establishment or modification of regulations for residues of pesticide chemicals in or on various commodities.

EPA has established registration review dockets for the pesticides listed in the table in Unit III.A. With this document, EPA is opening the public comment period for these registration reviews. Registration review is EPA's periodic review of pesticide registrations to ensure that each pesticide continues to satisfy the statutory standard for registration, that is, the pesticide can perform its intended function without unreasonable adverse effects on human health or the environment. Registration review dockets contain information that will assist the public in understanding the types of information and issues that the Agency may consider during the course of registration reviews. Through this program, EPA is ensuring that each pesticide's registration is based on current scientific and other knowledge, including its effects on human health and the environment. This document also announces the Agency's intent not to open a registration review docket for liquid nitrogen. This pesticide does not currently have any actively registered pesticide products and is not, therefore, scheduled for review under the registration review program.

This regulation establishes tolerances for combined residues of pendimethalin in or on artichoke, globe; asparagus; brassica head and stem, subgroup 5-A; and grape. Interregional Research Project Number 4 requested these tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA).

The Comprehensive Environmental Response, Compensation, and Liability Act (``CERCLA'' or ``the Act''), as amended, requires that the National Oil and Hazardous Substances Pollution Contingency Plan (``NCP'') include a list of national priorities among the known releases or threatened releases of hazardous substances, pollutants, or contaminants throughout the United States. The National Priorities List (``NPL'') constitutes this list. The NPL is intended primarily to guide the Environmental Protection Agency (``EPA'' or ``the Agency'') in determining which sites warrant further investigation. These further investigations will allow EPA to assess the nature and extent of public health and environmental risks associated with the site and to determine what CERCLA-financed remedial action(s), if any, may be appropriate. This rule proposes to add twelve new sites to the NPL, all to the General Superfund Section.

EPA is taking final action to approve a request submitted on June 15, 2007, from the State of Georgia, through the Georgia Environmental Protection Division (EPD), to redesignate the Macon 8- hour ozone nonattainment area to attainment for the 8-hour ozone National Ambient Air Quality Standard (NAAQS). The Macon 8-hour ozone area is comprised of Bibb County, and a portion of Monroe County located in middle Georgia (hereafter referred to as the ``Macon Area''). EPA's approval of the redesignation request is based on the determination that Georgia has demonstrated that the Macon Area has met the criteria for redesignation to attainment specified in the Clean Air Act (CAA), including the determination that the Macon Area has attained the 8-hour ozone standard. Additionally, EPA is approving a revision to the Georgia State Implementation Plan (SIP) including the 8-hour ozone maintenance plan for the Macon Area that contains the new regional 2020 motor vehicle emission budgets (MVEBs) for nitrogen oxides (NOX) and volatile organic compounds (VOCs). Through this action, EPA is also finding the new regional 2020 MVEBs adequate for the purposes of transportation conformity.