# Quarterly Rail Cost Adjustment Factor
**AGENCY:**
Surface Transportation Board.
**ACTION:**
Approval of rail cost adjustment factor.
**SUMMARY:**
The Board has approved the second quarter 2010 Rail Cost Adjustment Factor (RCAF) and cost index filed by the Association of American Railroads. The second quarter 2010 RCAF (Unadjusted) is 1.060. The second quarter 2010 RCAF (Adjusted) is 0.477. The second quarter 2010 RCAF-5 is 0.452. As part of its March 30, 2010 submission, AAR asks the Board to “correct the productivity calculation for the period 2003-2007,” and requests that the Board recalculate earlier RCAF (Adjusted) and RCAF-5 values that were determined with the 2003-2007 productivity adjustment factor. AAR's additional request will be considered in a separate proceeding.
**DATES:**
*Effective Date:* April 1, 2010.
**FOR FURTHER INFORMATION CONTACT:**
Pedro Ramirez, (202) 245-0333. (Federal Information Relay Service (FIRS) for the hearing impaired: 1-800-877-8339.)
**SUPPLEMENTARY INFORMATION:**
Additional information is contained in the Board's decision, which is available on our Web site *http://www.stb.dot.gov.* Copies of the decision may be purchased by contacting the office of Public Assistance, Governmental Affairs, and Compliance at (202)-245-0235. Assistance for the hearing impaired is available through FIRS at 1-800-877-8339.
This action will not significantly affect either the quality of the human environment or energy conservation.
Pursuant to 5 U.S.C. 605(b), we conclude that our action will not have a significant economic impact on a substantial number of small entities within the meaning of the Regulatory Flexibility Act.
By the Board, Chairman Elliott, Vice Chairman Mulvey, and Commissioner Nottingham.
Decided: March 31, 2010.
Jeffrey Herzig,
Clearance Clerk.