Portsmouth Transition of Services	6 Months Ended
Jun. 30, 2011
Portsmouth Transition of Services
Portsmouth Transition of Services	6. PORTSMOUTH TRANSITION OF SERVICES USEC ceased uranium enrichment operations at the Portsmouth GDP, located in Piketon, Ohio, in 2001. USEC's contract to maintain the facility for DOE in a state of "cold shutdown" expired on March 28, 2011. As previously reported, DOE awarded a contract for the decontamination and decommissioning ("D&D") of the Portsmouth site in August 2010 to a joint venture between Fluor Corp. and The Babcock & Wilcox Company. In connection with the expiration of the cold shutdown contract, USEC entered into an agreement with DOE in which USEC agreed to de-lease and return to DOE all remaining facilities at the Portsmouth site in Ohio except for those facilities leased for the ACP. In that agreement, DOE agreed to provide infrastructure services in support of the construction and operation of the ACP and to permit USEC's re-lease of certain facilities in the event they are needed to provide utility services to the ACP. The de-lease of these facilities will be completed when all relevant regulatory approvals have been obtained. This is anticipated to occur in the third quarter of 2011. However, if the full de-lease does not occur prior to September 30, 2011 the agreement will expire unless extended by mutual agreement of the parties. At the time of de-lease of the remaining facilities and their return to DOE, regulatory responsibility for the de-leased facilities will be transferred from the U.S. Nuclear Regulatory Commission ("NRC") to DOE. Until the facilities are de-leased, USEC will continue to operate such facilities and provide services to DOE and its contractors under cost reimbursement type contracts. Employee Transition Under the Worker Adjustment and Retraining Notification Act ("WARN Act"), notifications of potential mass layoffs are required to be issued by an employer 60 days in advance. Accordingly, in anticipation of the transition to the new D&D contractor, WARN Act notifications were provided on January 24, 2011 to USEC employees providing services under the DOE contract. An agreement was reached with the D&D contractor and the United Steel Workers ("USW") Local 5-689 allowing the transition from USEC of all Portsmouth workers represented by the USW to the D&D contractor on March 28, 2011. Under that agreement, no severance benefits were payable as a result of the transition. On March 8, 2011, WARN Act notifications were provided for members of the Security, Police, Fire Professionals of America ("SPFPA") Local 66. Negotiations continue between SPFPA and the D&D contractor to transition employees represented by SPFPA when the facilities are de-leased and returned to DOE. Salaried Portsmouth site workers needed to maintain the facilities returned to DOE, including most managers and supervisors, will transition to the D&D contractor upon de-lease of the facilities. Since these salaried employees have received, or are expected to receive, substantially equivalent offers of employment, they would not be eligible to receive severance benefits upon their transition to the D&D contractor. The potential severance liability associated with the transition of services at the Portsmouth site is currently estimated to be less than $2 million, but due to continued uncertainty no costs have been accrued for severance liability as of June 30, 2011. Pension and Postretirement Benefit Costs The cessation of certain U.S. government contract activities, the transfer of employees, and the pending transfer of certain other employees in Portsmouth triggered certain curtailment charges related to USEC's defined benefit pension plan and postretirement health and life benefit plan. Since a substantial number of employees were expected to be leaving USEC as a result of the transitioning of the government services work to the D&D contractor, USEC recognized approximately $0.4 million in cost of sales in December 2010 related to unamortized prior service costs based on the employee population at Portsmouth. USEC recognized an additional $5.1 million in cost of sales in 2011, including $1.9 million in the three months ended June 30, 2011, for curtailment charges related to the pension plan and postretirement benefit plan based on additional information and clarification on the timing and number of employees leaving USEC and refined actuarial estimates.

6. PORTSMOUTH TRANSITION OF SERVICES

USEC ceased uranium enrichment operations at the Portsmouth GDP, located in Piketon, Ohio, in 2001. USEC's contract to maintain the facility for DOE in a state of "cold shutdown" expired on March 28, 2011. As previously reported, DOE awarded a contract for the decontamination and decommissioning ("D&D") of the Portsmouth site in August 2010 to a joint venture between Fluor Corp. and The Babcock & Wilcox Company. In connection with the expiration of the cold shutdown contract, USEC entered into an agreement with DOE in which USEC agreed to de-lease and return to DOE all remaining facilities at the Portsmouth site in Ohio except for those facilities leased for the ACP. In that agreement, DOE agreed to provide infrastructure services in support of the construction and operation of the ACP and to permit USEC's re-lease of certain facilities in the event they are needed to provide utility services to the ACP. The de-lease of these facilities will be completed when all relevant regulatory approvals have been obtained. This is anticipated to occur in the third quarter of 2011. However, if the full de-lease does not occur prior to September 30, 2011 the agreement will expire unless extended by mutual agreement of the parties. At the time of de-lease of the remaining facilities and their return to DOE, regulatory responsibility for the de-leased facilities will be transferred from the U.S. Nuclear Regulatory Commission ("NRC") to DOE. Until the facilities are de-leased, USEC will continue to operate such facilities and provide services to DOE and its contractors under cost reimbursement type contracts.

Employee Transition

Under the Worker Adjustment and Retraining Notification Act ("WARN Act"), notifications of potential mass layoffs are required to be issued by an employer 60 days in advance. Accordingly, in anticipation of the transition to the new D&D contractor, WARN Act notifications were provided on January 24, 2011 to USEC employees providing services under the DOE contract. An agreement was reached with the D&D contractor and the United Steel Workers ("USW") Local 5-689 allowing the transition from USEC of all Portsmouth workers represented by the USW to the D&D contractor on March 28, 2011. Under that agreement, no severance benefits were payable as a result of the transition. On March 8, 2011, WARN Act notifications were provided for members of the Security, Police, Fire Professionals of America ("SPFPA") Local 66. Negotiations continue between SPFPA and the D&D contractor to transition employees represented by SPFPA when the facilities are de-leased and returned to DOE. Salaried Portsmouth site workers needed to maintain the facilities returned to DOE, including most managers and supervisors, will transition to the D&D contractor upon de-lease of the facilities. Since these salaried employees have received, or are expected to receive, substantially equivalent offers of employment, they would not be eligible to receive severance benefits upon their transition to the D&D contractor. The potential severance liability associated with the transition of services at the Portsmouth site is currently estimated to be less than $2 million, but due to continued uncertainty no costs have been accrued for severance liability as of June 30, 2011.

Pension and Postretirement Benefit Costs

The cessation of certain U.S. government contract activities, the transfer of employees, and the pending transfer of certain other employees in Portsmouth triggered certain curtailment charges related to USEC's defined benefit pension plan and postretirement health and life benefit plan. Since a substantial number of employees were expected to be leaving USEC as a result of the transitioning of the government services work to the D&D contractor, USEC recognized approximately $0.4 million in cost of sales in December 2010 related to unamortized prior service costs based on the employee population at Portsmouth. USEC recognized an additional $5.1 million in cost of sales in 2011, including $1.9 million in the three months ended June 30, 2011, for curtailment charges related to the pension plan and postretirement benefit plan based on additional information and clarification on the timing and number of employees leaving USEC and refined actuarial estimates.