Timeline of Major DCAS Events for 2006

• Argonne National Laboratory–East: Occupational Medical Dose section revised
• K-25 Occupational Internal Dose section revised
• Site Profile for the Kansas City Plant Page Change Revision
• Internal Dosimetry Coworker Data for the Hanford Site Page Change Revision
• Technical Information Bulletin: Characterization of Occupational Exposure to Radium and Radon Progeny During Recovery of Uranium from Phosphate Materials approved
• Y-12 Site Profile: Page change revision to Occupational Internal Dose section
• INEEL Site Profile: Occupational Internal Dose section revised
• Page change revision to the Exposure Matrix for Linde Ceramics Plant (including Tonawanda Laboratory)
• Argonne National Laboratory–East: Site Description section approved

January 24

• Federal Register Notice Published Announcing the Final Effect of Designation of a Class of Employees from the Linde Ceramics Plant for Addition to the SEC (October 1, 1942, through October 31, 1947)

January 7

• Effective Date for a Linde Ceramics Plant SEC Class (October 1, 1942, through October 31, 1947)

• Allied Chemical Corporation Site Profile approved
• Energy Technology Engineering Center (ETEC) Site Description and Occupational Medical Dose sections approved
• Argonne National Laboratory–East: Occupational Environmental Dose and Occupational External Dose sections approved
• Internal Dosimetry Organ, External Dosimetry Organ, and IREP Model Selection by ICD-9 Code page change revision
• Federal Register Notice: changes to the dose reconstruction target organ selection for lymphoma
• W. R. Grace and Company: An Exposure Matrix for W.R. Grace and Company in Erwin, Tennessee approved
• Y-12: Page change revision to Occupational Internal Dose and Occupational External Dose sections
• Fernald: Occupational Environmental Dose section revised
• Energy Technology Engineering Center (ETEC): Introduction, Occupational Internal Dose and Occupational External Dose sections approved

• Energy Technology Engineering Center (ETEC): Occupational Environmental Dose section approved
• Argonne National Laboratory–East: Occupational Internal Dose section approved; revision to Occupational Medical Dose section of the Site Profile
• Mound Plant: Page change revision to the Occupational Medical Dose section of the Site Profile

March 27

• Federal Register Notice Published Announcing that a Blockson Chemical Company SEC Petition has met the Minimum Qualifications for Review and Evaluation (October 10, 1952 through December 31, 1962)

March 17

• Federal Register Notice Published Announcing that a Nevada Test Site (NTS) SEC Petition has met the Minimum Qualifications for Review and Evaluation (1951-1963)

April 19

• Rocky Flats Plant: Technical Information Bulletin (TIB)–External Coworker Dosimetry Data for the Rocky Flats Plant approved
• DOE Complex Wide Documents: Technical Information Bulletin (TIB)–A Standard Complex-Wide Conversion/Correction Factor for Overestimating External Doses Measured with Thermoluminescent Dosimeter revised
• Y-12 Plant: Page change revision to the Occupational External Dose section of the Site Profile
• Y-12 Plant: Technical Information Bulletin (TIB)–Effect of Threshold Energy and Angular Response of NTA Film on Missed Neutron Dose at the Oak Ridge Y-12 Facility approved
• Y-12 Plant: Technical Information Bulletin (TIB)–External Radiation Dose Estimates For Individuals Near the 1958 Criticality Accident at the Oak Ridge Y-12 Plant approved
• Oak Ridge Gaseous Diffusion Plant (K-25 Site): Site Profile–Introduction section revised
• Oak Ridge National Laboratory (X-10): Site Profile-Page change revision to the Occupational Internal Dose section

May 22

• Federal Register Notice Published Announcing that a Monsanto Chemical Company SEC Petition has met the Minimum Qualifications for Review and Evaluation (1943-1949)

• Documents Covering both AWE and DOE Facilities: Technical Information Bulletin (TIB)–Technical Basis for Conversion from NCRP Report 38 Neutron Quality Factors to ICRP Publication 60 Radiation Weighting Factors for Respective IREP Input Neutron Energy Ranges approved
• DOE Complex Wide Documents: Technical Information Bulletin (TIB)–A Standard Complex-Wide Methodology for Overestimating External Doses Measured with Film Badge Dosimeters revised
• INEEL: Site Profile–Page change revision to the Occupational Internal Dose section

June 26

• Federal Register Notice Published Announcing that a LANL SEC Petition has met the Minimum Qualifications for Review and Evaluation (September 1, 1944 through July 18, 1963)
• Federal Register Notice Published Announcing that a S-50 Oak Ridge Thermal Diffusion Plant SEC Petition has met the Minimum Qualifications for Review and Evaluation (1944-1951)

June 17

• Federal Register Notice Published Announcing that a Los Alamos National Laboratory (LANL) SEC Petition has met the Minimum Qualifications for Review and Evaluation (January 1, 1976 through December 31, 2005)

• Pinellas Plant: Site Profile–Page change revisions to the Occupational Medical Dose and Occupational External Dose sections
• Mound Plant: Site Profile–Page change revision to the Site Description section
• Portsmouth Gaseous Diffusion Plant: Site Profile–Revision to the Occupational Medical Dose section
• Nevada Test Site: Site Profile–Page change revisions to the following Site Profile sections: Introduction, Occupational Internal Dose, and Occupational External Dose
• Oak Ridge Gaseous Diffusion Plant (K-25 Site): Technical Information Bulletin–Page change revision to Internal Dosimetry Coworker Data for K-25
• Oak Ridge National Laboratory (X-10): Site Profile–Page change revision to Occupational Medical Dose section
• Y-12 Plant: Site Profile–Occupational Environmental Dose and Occupational Internal Dose sections revised
• Argonne National Laboratory-East: Page change revision to the Site Description section of the Site Profile
• Lawrence Berkeley National Laboratory: Site Profile approved
• Pantex Plant: Occupational Internal Dose and Occupational External Dose sections of the Site Profile approved
• Revisions of the Introduction and Site Description sections of the Site Profile
• Rocky Flats Plant: Technical Information Bulletin–Internal Dosimetry Coworker Data for Rocky Flats Environmental Technology Site approved

July 26

• Effective Date of a NTS SEC Class (January 27, 1951 through December 31, 1962)
• Effective Date of a Pacific Proving Ground SEC Class (1946-1962)

July 13

• Federal Register Notice Published Announcing the Designation of a Class of Employees from Pacific Proving Ground for Addition to the SEC (1946-1962)

July 12

• Federal Register Notice Published Announcing the Designation of a Class of Employees from NTS for Addition to the SEC (January 27, 1951 through December 31, 1962)

• Technical Information Bulletin: Parameters to Consider When Processing Claims for Construction Trade Workers approved
• Paducah Gaseous Diffusion Plant Site Profile: Site Description and Occupational External Dose sections revised; page change revision to the Introduction section
• Area IV of the Santa Susana Field Laboratory Site Profile: Introduction section revised
• Oak Ridge National Laboratory (ORNL or X-10) Site Profile: Site Description section revised
• Hanford Site Profile: Introduction section revised
• Pacific Proving Grounds Site Profile: Summary Site Profile for the Pacific Proving Grounds approved
• Brookhaven National Laboratory Site Profile: Summary Site Profile for the Brookhaven National Laboratory approved

August 17

• Federal Register Notice Published Announcing that a Blockson Chemical Company SEC Petition has met the Minimum Qualifications for Review and Evaluation (January 1, 1951 through December 31, 1962)
• Federal Register Notice Published Announcing that a LANL SEC Petition has met the Minimum Qualifications for Review and Evaluation (1943-1975)

August 4

• Federal Register Notice Published Announcing that a General Atomics SEC Petition has met the Minimum Qualifications for Review and Evaluation (January 1, 1960, through December 31, 1969)
• Federal Register Notice Published Announcing that a Harshaw Chemical Company SEC Petition has met the Minimum Qualifications for Review and Evaluation (January 1, 1942 through November 30, 1949)
• Federal Register Notice Published Announcing the Final Effect of Designation of a Class of Employees from NTS for Addition to the SEC (January 27, 1951 through December 31, 1962)
• Federal Register Notice Published Announcing the Final Effect of Designation of a Class of Employees from Pacific Proving Ground for Addition to the SEC (1946-1962)

• Blockson Chemical Company: Technical Basis Document revised
• Technical Information Bulletin: Application of Internal Doses Based on Claimant-Favorable Assumptions for Processing as Best Estimates approved
• Area IV of the Santa Susana Field Laboratory Site Profile: Occupational Medical section revised
• Technical Information Bulletin: Occupational Dose from Elevated Ambient Levels of External Radiation canceled
• Oak Ridge Gaseous Diffusion Plant (K-25 Site) Site Profile: Page change revisions to Occupational Environmental Dose and Occupational External Dose sections
• Paducah Gaseous Diffusion Plant Site Profile: Occupational Medical Dose section revised

September 22

• Federal Register Notice Published Announcing that an Allied Chemical Corporation SEC Petition has met the Minimum Qualifications for Review and Evaluation (January 1, 1959 to December 31, 1976)
• Federal Register Notice Published Announcing the Final Effect of Designation of a Class of Employees from Ames Laboratory for Addition to the SEC (January 1, 1942, through December 31, 1954)
• Federal Register Notice Published Announcing the Final Effect of Designation of a Class of Employees from the Y-12 Plant for Addition to the SEC (January 1948 – December 1957)

September 7

• Federal Register Notice Published Announcing the Designation of a Class of Employees from the Ames Laboratory for Addition to the SEC (January 1, 1942, through December 31, 1954)
• Effective date for the Ames Laboratory SEC Class (January 1, 1942, through December 31, 1954); Effective Date for a Y-12 SEC Class (January 1948 through December 1957)
• Effective Date of a Y-12 Plant SEC Class (January 1948 through December 1957)
• Federal Register Notice Published Announcing that a Bethlehem Steel Corporation SEC Petition has met the Minimum Qualifications for Review and Evaluation (1949-1952)
• Federal Register Notice Published Announcing the Designation of a Class of Employees from the Y-12 Plant for Addition to the SEC (January 1948 to December 1957)

• Hanford Site Profile: Page change revision to the Occupational External Dose section
• Oak Ridge Gaseous Diffusion Plant (K-25 Site) Site Profile: Revision to the Site Description section and page change revision to the Occupational Internal Dose section
• Pinellas Plant Site Profile: Revision to the Site Description section and page change revision to the Occupational External Dose section
• Portsmouth Gaseous Diffusion Plant Site Profile: Site Description section revised
• Chapman Valve Technical Basis Document revised
• Y-12 Plant Site Profile: Page change revision to the Occupational Internal Dose section
• Paducah Gaseous Diffusion Plant Site Profile: Introduction and Occupational Internal Dose sections revised; page change revision to the Site Description section
• Stanford Linear Accelerator Center: Site Profile approved

• INEEL Site Profile: Occupational External Dose section revised
• Portsmouth Gaseous Diffusion Plant: Page change revision to Technical Information Bulletin: External Coworker Dosimetry Data for the Portsmouth Gaseous Diffusion Plant and revision to the Occupational External Dose section of the Site Profile
• Savannah River Site Technical Information Bulletin: Page change revision to External Coworker Dosimetry Data for the Savannah River Site
• Paducah Gaseous Diffusion Plant: Revision to the Occupational Environmental Dose section of the Site Profile and page change revision to External Coworker Dosimetry Data Paducah Gaseous Diffusion Plant Technical Information Bulletin
• Oak Ridge National Laboratory (ORNL or X-10): Revision to External Coworker Dosimetry Data for the X-10 Site Technical Information Bulletin
• Oak Ridge Gaseous Diffusion Plant (K-25 Site): Page change revision to the Occupational Medical Dose section of the Site Profile and page change revision to External Coworker Dosimetry Data for the K-25 Site Technical Information Bulletin
• Hanford: Page change revision to External Coworker Dosimetry Data for the Hanford Site Technical Information Bulletin and Site Profile: Occupational External Dose section revised
• Pinellas Plant Site Profile: Page change revision to the Occupational External Dose section
• Clarksville Facility: Site Profile approved
• Medina Facility: Site Profile approved
• Area IV of the Santa Susana Field Laboratory (Atomics International) Site Profile: Occupational External Dose section revised
• Rocky Flats Plant Site Profile: Introduction section revised

• Technical Information Bulletin: Page change revision to Estimating the Maximum Plausible Dose to Workers at Atomic Weapons Employer Facilities
• Technical Information Bulletin: Page change revision to Validation of Thorium Annual Dose Conversion Factors
• Nevada Test Site's Site Profile: Page change revision to the Occupational Environmental Dose section
• S-50 Oak Ridge Thermal Diffusion Plant: Summary Site Profile approved
• Site Profile for Atomic Weapons Employers that Refined Uranium and Thorium approved
• Site Profile for Atomic Weapons Employers that Worked Uranium and Thorium approved
• Idaho National Laboratory: Site Profile Introduction section revised and Technical Information Bulletin in Support of INEEL Technical Basis Document Section 6: Reanalysis of Hankins MTR Bonner Sphere Surveys revised
• Hanford Site Profile: Occupational Environmental Dose section revised

December 27

• Federal Register Notice Published Announcing the Final Effect of Designation of a Class of Employees from LANL for Addition to the SEC (September 1, 1944 through July 18, 1963)
• Federal Register Notice Published Announcing the Final Effect of Designation of a Class of Employees from ORINS for Addition to the SEC (May 15, 1950, through December 31, 1963)
• Federal Register Notice Published Announcing the Final Effect of Designation of a Class of Employees from the S-50 Oak Ridge Thermal Diffusion Plant for Addition to the SEC (July 9, 1944 through December 31, 1951)

December 14

• Federal Register Notice Published Announcing that a Dow Chemical Company SEC Petition has met the Minimum Qualifications for Review and Evaluation (January 1, 1957 through December 21, 1960)

December 9

• Effective Date for a LANL SEC Class (September 1, 1944 through July 18, 1963); Effective Date for an ORINS SEC Class (May 15, 1950, through December 31, 1963)
• Effective Date for an S-50 Oak Ridge Thermal Diffusion Plant SEC Class (July 9, 1944 through December 31, 1951)

December 8

• Federal Register Notice Published Announcing that a Hanford SEC Petition has met the Minimum Qualifications for Review and Evaluation (January 2, 1942 through December 31, 1990)
• Federal Register Notice Published Announcing the Designation of a Class of Employees from LANL for Addition to the SEC (September 1, 1944 through July 18, 1963)
• Federal Register Notice Published Announcing the Designation of a Class of Employees from Oak Ridge Institute for Nuclear Studies (ORINS) for Addition to the SEC (May 15, 1950, through December 31, 1963)
• Federal Register Notice Published Announcing the Designation of a Class of Employees from the S-50 Oak Ridge Thermal Diffusion Plant for Addition to the SEC (July 9, 1944 through December 31, 1951)