EXHIBIT 12 (A) - ---------------------------------------------------------------------------------------------------------------------------- PUBLIC SERVICE ELECTRIC AND GAS COMPANY - ---------------------------------------------------------------------------------------------------------------------------- COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES 12 Months Ended YEARS ENDED DECEMBER 31, March 31, ----------- ------------ ------------- ------------ ------------ ---------- 1994 1995 1996 1997 1998 1999 ----------- ------------ ------------- ------------ ------------ ---------- Earnings as Defined in Regulation S-K (A): Net Income $659 $617 $535 $528 $604 $616 Income Taxes (B) 302 326 268 286 406 421 Fixed Charges 408 419 438 450 446 443 ----------- ------------ ------------- ------------ ------------ ----------- Earnings $1,369 $1,362 $1,241 $1,264 $1,456 $1,480 =========== ============ ============= ============ ============ =========== Fixed Charges as Defined in Regulation S-K (C): Total Interest Expense $396 $407 $399 $395 $390 $387 Interest Factor in Rentals 12 12 11 11 11 11 Subsidiaries' Preferred Securities Dividend Requirements -- -- 28 44 45 45 ----------- ------------ ------------- ------------ ------------ ---------- Total Fixed Charges $408 $419 $438 $450 $446 $443 =========== ============ ============= ============ ============ =========== Ratio of Earnings to Fixed Charges 3.35 3.25 2.83 2.81 3.27 3.34 =========== ============ ============= ============ ============ =========== <FN> (A) The term "earnings" shall be defined as pretax income from continuing operations. Add to pretax income the amount of fixed charges adjusted to exclude (a) the amount of any interest capitalized during the period and (b) the actual amount of any preferred stock dividend requirements of majority-owned subsidiaries which were included in such fixed charges amount but not deducted in the determination of pretax income. (B) Includes State income taxes and Federal income taxes for other income. (C) Fixed Charges represent (a) interest, whether expensed or capitalized, (b) amortization of debt discount, premium and expense, (c) an estimate of interest implicit in rentals, and (d) Preferred Securities Dividend Requirements of subsidiaries. </FN>