Recent Additions

Monday, May 12, 2003

NEW FERA SITE

The TTNWeb Fate, Exposure, and Risk Analysis (FERA) site has been addeded and is now open to the public. The tools found on this website, which include EPA's Total Risk Integrated Methodology, will assist with the Environmental Protection Agency’s efforts to evaluate the health risks and environmental effects associated with exposure to “criteria” (six common air pollutants including ozone and particles) and toxic air pollutants.

Tuesday, May 15, 2001

UATW is now ATW

The TTNWeb Unified Air Toxics Web site (UATW) has been redesigned and updated with a new look and is now known as the Air Toxics Web site (ATW). ATW is available from the TTNWeb home page under ATW. The reason for redesign was to make it consistent with the 4 components of the air toxics program that have recently been described in FR notices and other related current programs.

Wednesday, December 6, 2000

TTNWeb home page revised

The TTNWeb home page has been revised for readability and presentation. Additional words have been added to the home page to more readily identify the sites that are a part of the TTNWeb system.

Wednesday, October 18, 2000

FACA Web site re-opened

While the Federal Advisory Committee Act (FACA) formed by EPA to obtain advice and recommendations on integrated approaches for implementing (NAAQS) for ozone and particulate matter is over, the information obtained during the process is considered valuable for an initiative to implement the 8-hour standards. The FACA Web site is re-opened to present what was done during the FACA process as a aid to implementing the new standards.

Monday, June 26, 2000

FACA Web site closed

Information concerning the Federal Advisory Committee Act (FACA) formed by EPA to obtain advice and recommendations on integrated approaches for implementing (NAAQS) for ozone and particulate matter, is not current information. It is therefore appropriate for the TTNWeb FACA Web site to be closed after presenting historical, static data well beyond the life of the FACA committees.

Monday, April 3, 2000

Web Site Maintenance Resumed

Updates are once again being made to the TTNWeb. We apologize for not being able to post new information for the past 6 weeks due to EPA's work on new and improved security procedures. Please be patient as we have a backlog of files for posting on the TTNWeb sites.

Wednesday, December 29, 1999

Web Sites Unavailable for Y2K/New Years Weekend

Public Access users from the Internet will not have access to EPA Web Sites from 6:00 PM, December 31, 1999 to 6:00 AM, January 3, 2000. A status page will be returned to users who try to access EPA Public Access Web Sites during this time.

Thursday, October 14, 1999

October Regulatory Update

The October Regulatory Update is available from the TTNWeb OAR P&G; site. From the OAR P&G; home page, see the section called Clean Air Updates.

Friday, August 6, 1999

August Regulatory Update

The August Regulatory Update is available from the TTNWeb OAR P&G; site. From the OAR P&G; home page, see the section called Clean Air Updates.

Thursday, June 10, 1999

June Regulatory Update

The June Regulatory Update is available from the TTNWeb OAR P&G; site. From the OAR P&G; home page, see the section called Clean Air Updates.

Tuesday, June 8, 1999

TTNWeb gets new home page

The TTNWeb home page has been modified to provide more direct access to the technical sites available from the TTN.

Monday, May 10, 1999

Economics and Cost Analysis Support (ECAS) is now a TTNWeb Web site

The Economics and Cost Analysis Support (ECAS) Web site is now available as a TTNWeb Web site. Documents developed by the Innovative Strategies and Economics Group (ISEG) can now be found in one place. These documents include analyses of costs, benefits, and economic and regulatory impacts of air quality management strategies, programs, and regulations developed throughout the Office of Air Quality Planning and Standards (OAQPS). ECAS is available from the TTNWeb Directory of Technical Sites page.

Thursday, May 6, 1999

Industrial Combustion Coordinated Rulemaking (ICCR) Web site discontinued

The Charter for the Industrial Combustion Coordinated Rulemaking (ICCR) Federal Advisory Committee was not renewed by the Environmental Protection Agency (EPA). Consequently, the Committee and the work groups which developed recommendations for the Committee to consider, no longer exist. The ICCR web site has been discontinued. Web pages have been developed for each of the regulations formerly associated with the ICCR. The Regulations are located on the UATW Web site under Combustion-Related Rules.

Friday, April 30, 1999

Draft Periodic Monitoring Technical Reference Document (TRD)

The Draft Periodic Monitoring Technical Reference Document (TRD) is available for your review on the Emissions Measurement Center web site. The TRD is located under "Monitoring", then "Compliance Assurance Monitoring". The document provides general technical information and practical applications for complying with title V periodic monitoring requirements and presents specific examples of monitoring that satisfies the requirements. This document is intended to augment the Periodic Monitoring Guidance memorandum of September 15, 1998, not replace it. Please submit your comments on the draft document by June30, 1999, to Mr. Peter Westlin, via regular mail at U.S. EPA, Emissions Measurement Center (MD-19), Research Triangle Park, NC, 27711, or via email at westlin.peter@epa.gov. The TRD has been split into different files for easier downloading. The files are in both Word Perfect zipped and Adobe Acrobat format.

Thursday, April 8, 1999

April Regulatory Update

The April Regulatory Update is available from the TTNWeb OAR P&G; site. From the OAR P&G; home page, see the section called Clean Air Updates.

Tuesday, March 23, 1999

New Regional Transport of Ozone (RTO) Web site

This comprehensive site replaces the old OTAG site and includes all of the information for the NOx SIP Call, 126 Petitions, OTAG and all other information related to ozone transport. TTNWeb RTO Web site.

Friday, March 5, 1999

March Regulatory Update

The March Regulatory Update is available from the TTNWeb OAR P&G; site. From the OAR P&G; home page, see the section called Clean Air Updates.

Thursday, February 4, 1999

February Regulatory Update

The February Regulatory Update is available from the TTNWeb OAR P&G; site. From the OAR P&G; home page, see the section called Clean Air Updates.

Tuesday, January 19, 1999

January Regulatory Update

The January Regulatory Update is available from the TTNWeb OAR P&G; site. From the OAR P&G; home page, see the section called Clean Air Updates.

Monday, November 2, 1998

November Regulatory Update

The November Regulatory Update is available from the TTNWeb OAR P&G; site. From the OAR P&G; home page, see the section called Clean Air Updates.

Friday, October 2, 1998

October Regulatory Update

The October Regulatory Update is available from the TTNWeb OAR P&G; site. From the OAR P&G; home page, see the section called Clean Air Updates.

Thursday, September 24, 1998

Final Rule for Reducing Regional Transport of Ozone

EPA issued the Final Regional NOx Transport Rule requiring 22 eastern States and DC to submit State Implementation plans that address the regional transport of ground-level ozone through reductions in nitrogen oxides. This rule package is available from the OAR P&G; site Recent Actions Page.

Wednesday, September 2, 1998

September Regulatory Update

The September Regulatory Update is available from the TTNWeb OAR P&G; site. From the OAR P&G; home page, see the section called Clean Air Updates.

Monday, August 31, 1998

CEMS Teleconference Announcement

An announcement regarding the CEMS Cost Model Teleconference is available from the TTNWeb EMC site. From the EMC site, see the section called "Instructional Material" then Meetings, Conferences, Workshops.

Tuesday, August 18, 1998

Aerometric Information Retrieval Systems (AIRS) on the TTNWeb

The technical part of the AIRS system has been converted and is now a permanent part of the TTNWeb on EPA's public access server. The new AIRS technical site is available from the TTNWeb Directory of Technical Sites page.

Thursday, July 9, 1998

TTNWeb Brochure

A brochure that contains information about the contents of TTNWeb is now available from the About TTNWeb Page.

Wednesday, June 17, 1998

Emission Measurement Center (EMC) on the TTNWeb

The EMC site has been converted and is now a permanent part of the TTNWeb on EPA's public access server. The new EMC is available from the TTNWeb Directory of Sites.

Tuesday, June 16, 1998

National Environmental Laboratory Accreditation Conference (NELAC) on the TTNWeb

The NELAC site has been converted and is now a permanent part of the TTNWeb on EPA's public access server. The new NELAC is available from the TTNWeb Directory of Sites.

Friday, May 22, 1998

Public Forum for SCRAM on the TTNWeb

A public forum is now in place for the SCRAM site. Access is available from the TTNWeb Public Forums Page.

Wednesday, March 11, 1998

Geographic/Ecosystems Initiatives (GEI) on the TTNWeb

The GEI site has been converted and is now a permanent part of the TTNWeb on EPA's public access server. The new GEI is available from the TTNWeb Directory of Sites.

Friday, March 6, 1998

Industrial Combustion Coordinated Rulemaking (ICCR) on the TTNWeb

The ICCR site has been converted and is now a permanent part of the TTNWeb on EPA's public access server. The new ICCR is available from the TTNWeb Directory of Sites.

Tuesday, February 24, 1998

TTNWeb COMPLI superseded by the Office of Enforcement and Compliance Assurance (OECA) Web site

Access the OECA Web Site for Compliance information including the National Asbestos Registry System (NARS) and Applicability Determination Index (ADI) databases.

Wednesday, February 4, 1998

OAR Sidebar Added to TTNWeb Home Page

EPA's Final NAAQS for Ozone and PM is accessable from the OAR sidebar under NEW Air Rules

Monday, January 26, 1998

OAR P&G; Site Reorganized

The OAR P&G; site has been reorganized into plain-English categories. See the What's New page for OAR P&G; for more details.

Tuesday, January 20, 1998

Clean Air Technology Center (CATC) on the TTNWeb

The CATC site has been converted and is now a permanent part of the TTNWeb on EPA's public access server. The new CATC is available from the TTNWeb Directory of Sites.

Thursday, January 8, 1998

OTAG Final Report on the TTNWeb

The Ozone Transport and Assessment Group (OTAG) Final Report is now available from the OTAG top page on the TTNWeb.

Wednesday, December 17, 1997

Ambient Monitoring Technology Information Center (AMTIC) on the TTNWeb

The AMTIC site has been converted and is now a permanent part of the TTNWeb on EPA's public access server. The new AMTIC is available from the TTNWeb Directory of Sites.

Friday, October 31, 1997

Ozone Transport Assessment Group (OTAG) on the TTNWeb

The OTAG site has been converted and is now a permanent part of the TTNWeb on EPA's public access server. The new OTAG is available from the TTNWeb Directory of Sites. The OTAG BBS (dialup) is no longer updated.

Tuesday, October 21, 1997

Review of NAAQS for Particulate Matter

The Federal Register Notice for Review of National Ambient Air Quality Standards for Particulate Matter can be found in the OAR P&G; Site

Monday, October 20, 1997

Section 126 Petitions on TTNWeb

The Final Rule for Promulgation of Action on Section 126 Petitions can be found in the OAR P&G; Site

Wednesday, October 15, 1997

New Source Review (NSR) on the TTNWeb

The NSR site has been converted and is now a permanent part of the TTNWeb on EPA's public access server. The new NSR is available from the TTNWeb Directory of Sites. The NSR BBS (Dialup) is no longer supported.

Friday, October 10, 1997

OTAG SIP CAll on the TTNWeb

The Proposed Rule for Reducing Regional Transport of Ground-Level Ozone can be found in the OAR P&G; Site

Wednesday, October 8, 1997

CAM Rule available on the TTNWeb

The final Compliance Assurance Monitoring (CAM) rule was signed by the Administrator on Friday, October 3, 1997. The Rule, Preamble, Fact Sheet and relevant files can be found under Recently Signed Rules on the OAR P&G; site.

Friday, August 1, 1997

Introduction of the TTNWeb

The TTNWeb becomes the permanent Web site for the Technology Transfer Network (TTN). Sites that were formerly electronic bulletin boards are converting to the TTNWeb. Background information on the TTNWeb provides some explanation for this transition project. Links are provided to the intermediate TTN2000 Web sites until all are converted to the new TTNWeb structure.

Name Change for the CAAA site

The site formerly listed as CAAA has a new name. Under the new TTNWeb the site is now listed as OAR P&G; on the TTNWeb Directory of Sites.