United States Court of Appeals
                            FOR THE EIGHTH CIRCUIT
                                     ___________

                                     No. 00-3175
                                     ___________

Richard A. Peterson; Jane Peterson,       *
on their own behalf, and on behalf of     *
the shareholders of Peterson Turkey       *
Hatchery, Inc., an S Corporation,         *
                                          * Appeal from the United States
                    Appellants,           * District Court for the District
                                          * of Minnesota.
      v.                                  *
                                          *      [UNPUBLISHED]
United States of America,                 *
                                          *
                    Appellee.             *
                                     ___________

                                Submitted: May 17, 2001

                                    Filed: May 24, 2001
                                     ___________

Before LOKEN, ROSS, and FAGG, Circuit Judges.
                            ___________

PER CURIAM.

       In 1994 and 1995, Peterson Turkey Hatchery, Inc. (PTH), a Subchapter S
corporation and cash-basis taxpayer, paid for turkey feed to be used in the next fiscal
year, and claimed a tax deduction for the prepayments in the year they were made.
After a 1996 audit, the Internal Revenue Service disallowed the deductions.
Shareholders of PTH, Richard A. Peterson and Jane Peterson, paid an estimated tax
and brought this action against the United States for a refund. The district court*
granted summary judgment in the Government's favor. The district court recognized
that according to Revenue Ruling 79-229, a deduction for prepaid feed expenses may
be taken when, among other things, the prepayment is made for a valid business
purpose and not merely for tax avoidance. See Keller v. Commissioner, 

, 1176 (8th Cir. 1984). The district court concluded the business advantages
alleged by the Petersons either did not exist or were attainable without the prepayment,
and thus, the Petersons failed to create a genuine issue of material fact about whether
the prepayments were made for a valid business purpose and not merely for tax
avoidance.

       On appeal, the Petersons assert the district court should not have applied
Revenue Ruling 79-229 because it is not binding and its validity is in question. We
disagree. A revenue ruling is the I.R.S.'s official interpretation about how the laws
apply to a set of facts. As the district court recognized, although Revenue Rulings are
not binding, they are authoritative. See Oetting v. United States, 

, 362 &
n.3 (8th Cir. 1983). We have already recognized Revenue Ruling 79-229, which has
a long and consistent history, is a reasonable construction of the Internal Revenue Code
and its regulations with respect to prepayments. See 

.
Because the construction is reasonable, "it attracts substantial judicial deference."
United States v. Cleveland Indians Baseball Co., No. 00-203, 

, at *12
(U.S. Apr. 17, 2001). The Petersons contend Internal Revenue Code § 464 overrules
Revenue Ruling 79-299, but the Petersons failed to raise this contention in the district
court and we need not consider it. Besides, the contention is without merit because
Revenue Ruling 79-229 was issued after the enactment of I.R.C. § 464.




      *
      The Honorable Richard H. Kyle, United States District Judge for the District of
Minnesota.

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       The Petersons also assert the district court improperly found facts in rejecting
their stated business purposes for the prepayment. Having carefully reviewed the
record, we disagree. The district court correctly held the Petersons failed to carry their
burden to show genuine issues of material fact precluded summary judgment against
them. We affirm for the reasons stated by the district court.

      A true copy.

             Attest:

                     CLERK, U.S. COURT OF APPEALS, EIGHTH CIRCUIT.




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