Exhibit 99(a) CNF TRANSPORTATION INC. COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES (Dollars in thousands) Nine Months Ended September 30 1998 1997 Fixed Charges: Interest Expense $ 25,135 $ 29,882 Capitalized Interest 1,585 1,786 Dividend Requirement on Series B Preferred Stock [1] 11,212 11,776 Interest Component of Rental Expense [2] 28,977 24,755 $ 66,909 $ 68,199 Earnings: Income before Taxes $ 187,837 $ 167,942 Fixed Charges 66,909 68,199 Capitalized Interest (1,585) (1,786) Preferred Dividend Requirements [3] (11,212) (11,776) $ 241,949 $ 222,579 Ratio of Earnings to Fixed Charges: 3.6 x 3.3 x [1] Dividends on shares of the Series B cumulative convertible preferred stock are used to pay debt service on notes issued by the Company's Thrift and Stock Plan. [2] Estimate of the interest portion of lease payments. The nine month period ended September 30, 1997 was restated for a change in the estimation method. [3] Preferred stock dividend requirements included in fixed charges but not deducted in the determination of Income before Taxes.