Terry J. Grigsby appeals from the district court’s decision affirming the Commissioner’s denial of his application for Social Security disability insurance and supplemental security income benefits. We affirm, 1 based on our determination *1217 that the 1996 amendments to the Social Security Act, concerning disability benefits based on alcoholism or drug addiction, apply to Mr. Grigsby’s pending claims.
BACKGROUND
Mr. Grigsby first sought benefits in July 1994, when he filed an application claiming disability due to scoliosis and collapsed vertebrae. The application was denied on initial review, on reconsideration, and, following a hearing, on consideration by an administrative law judge (ALJ). On judicial review, however, the district court determined that the record contained indications of alcoholism which the Commissioner had failed to develop. 2 The court therefore determined that the case should be remanded “to the ALJ for a supplemental hearing so that Plaintiff can testify as to his current situation with alcohol and to submit additional medical evidence concerning current status, treatment, etc. for this alleged alcohol problem.” Appellant’s App. at 264.
The district court also noted that, in 1996, Congress amended the statutory standards applicable to persons whose condition is affected by alcoholism or drug addiction. Id. Under the amended provisions, “[a]n individual shall not be considered to be disabled ... if alcoholism or drug addiction would ... be a contributing factor material to the Commissioner’s determination that the individual is disabled.” Contract with America Advancement Act of 1996, Pub. L. No. 104-121, §§ 105(a)(1)(C), 106(b)(1)®, 1996 U.S.C.C.A.N. (110 Stat.) 847, 852-53 (codified as amended at 42 U.S.C. §§ 423(d)(2)(C), 1382c(a)(3)(I)).
At the time of the district court decision, the amendments were effective to preclude an award of benefits to individuals whose claims were “finally adjudicated by the Commissioner of Social Security” on or after March 29, 1996. Id., §§ 105(a)(5)(A), 105(b)(5)(A), at 853-54 (codified as amended at 42 U.S.C. §§ 405 (note), 1382 (note) (1997)). Individuals whose claims had been favorably and finally adjudicated before that date were given a grace period until January 1, 1997, at which time their benefits would cease. Id.
Based on its interpretation of the amendments’ effective-date provision, the district court stated that Mr. Grigsby’s possible alcoholism “must be categorized as being disabling on or before 3 — 2[9]—96 which is the date this condition will no longer warrant the finding of disability.” Appellant’s App. at 265-66. The district court’s statement was consistent with other cases holding that a claim was “finally adjudicated” when a claimant had exhausted administrative remedies, but had not completed the judicial review process.
See Newton v. Chater,
By the time the case came before the ALJ on remand, however, Congress had clarified the effective-date provision. In Technical Amendments Relating to Drug Addicts and Alcoholics, Congress provided that a claim is not finally adjudicated if “there is pending a request for either administrative or judicial review with respect to such claim.” Balanced Budget Act of 1997, Pub. L. No. 105-33, § 5525(a)(2)(D)®, 1997 U.S.C.C.A.N. (111 Stat.) 251, 624-25 (codified as amended at 42 U.S.C. § 1382 (note) (emphasis added)). *1218 The clarification was to “take effect as if included” in the 1996 amendments. Id., § 5528(c)(i). 3
On remand to the ALJ, Mr. Grigsby sought benefits from his alleged onset date of May 15, 1991, through January 1, 1997, the termination date for persons already receiving disability insurance benefits based on alcoholism. After receiving additional evidence and conducting another hearing, the ALJ issued his decision. The ALJ found that Mr. Grigsby’s alcoholism was severe enough to amount to a “substance addiction disorder” under 20 C.F.R. § 404, Subpt. P, App. 1, § 12.09. He determined, however, that Mr. Grigsby was not entitled to benefits for any period of time because (1) alcoholism was a contributing factor material to the disability finding, and (2) Mr. Grigsby’s claim was not finally adjudicated before March 29,1996.
Mr. Grigsby then filed a complaint for judicial review. He conceded that his disability was attributable to alcoholism and attacked only the applicability of the amendments to his request for benefits through January 1, 1997. The district court affirmed the Commissioner’s decision and this appeal followed.
DISCUSSION
In challenging the Commissioner’s decision in this court, Mr. Grigsby argues that the application of the amended provisions to his claim: (1) violates the law of the case doctrine and the mandate rule; (2) amounts to an impermissible retroactive application of the amended statutory provisions; and (3) infringes upon his equal protection rights. We review the record to determine whether the decision of the ALJ is supported by substantial evidence and to verify that the law was correctly applied.
See Kepler v. Chater,
Law of the case and mandate rule
Mr. Grigsby maintains that, under the doctrine of the law of the case and the mandate rule, the Commissioner was required to award him benefits. The district court’s initial order implied that an award would be forthcoming if the Commissioner found Mr. Grigsby’s possible alcoholism disabling before March 29, 1996. Generally, “qnce a court decides an issue, the same issue may not be relitigated in subsequent proceedings in the same case” and there must be compliance with the reviewing court’s mandate.
Ute Indian Tribe of the Uintah & Ouray Reservation v. Utah,
This court has “routinely recognized,” however, that application of these principles is “ ‘discretionary, not mandatory.’ ”
Kennedy v. Lubar,
Here, Congress enacted clarifying legislation to provide guidance on the applicability of the amended alcoholism and drug addiction provisions. With the technical amendments, Congress signaled its plain intent to bar alcoholism-based benefits for claims in which a request for judicial review was pending after March 29, 1996.
See O’Kane v. Apfel,
Retroactivity
The second argument raised by Mr. Grigsby is that application of the 1996 amendments has an impermissible retroactive effect. “[T]he ■ general rule is that courts will not apply [a new] statute in ways that would create new legal consequences for events completed before the statute was enacted.”
Daniels v. United States,
As explained above, the technical amendments make it clear that “Congress deliberately precluded benefits to pending claims.”
O’Kane,
Equal Protection
Finally, Mr. Grigsby asserts that the amended provisions violate his equal protection rights, in that they treat alcoholics with promptly-adjudicated claims differently from alcoholics with claims still pending as of-April 29, 1996. Under the provisions, members of the first group received *1220 benefits from the date of their application through January 1, 1997. Members of the second group received no benefits.
In
United States Railroad Retirement Board v. Fritz,
In the instant case, the challenged classification depends upon the timing of adjudication. Congress has denied benefits to individuals with claims pending as of March 29, 1996, but allowed a limited grace period for individuals whose claims were favorably and finally adjudicated before that date. The distinction involves no suspect class or quasi-suspect class, and it impinges upon no fundamental right. Thus, the rational basis test applies. Under the rational basis test, the challenged legislation is presumptively constitutional, and the appellant bears the “very difficult burden” of establishing “that the statute is irrational or arbitrary and that it cannot conceivably further a legitimate governmental interest.”
United States v. Phelps,
The legislation at issue here is clearly related to a legitimate governmental goal. “The government seeks ... to discourage alcohol and drug abuse, or at least not to encourage it with a permanent government subsidy.”
Ball,
Here, Congress’s line-drawing withstands rational basis scrutiny. “There is a reasonable basis for the distinction between the two categories-the people who have never obtained payment do not have the need to adjust as do those who have received benefits in the past.”
Torres,
CONCLUSION
The ALJ properly applied the amended provisions when reviewing Mr. Grigsby’s claim on remand. AFFIRMED.
Notes
. After examining the briefs and appellate record, this panel has determined unanimously to grant the parties' request for a decision on the briefs without oral argument. See Fed. R.App. P. 34(f); 10th Cir. R. 34.1(G). The case is therefore ordered submitted without oral argument.
. Mr. Grigsby’s district court case was referred to a magistrate judge, who issued findings and a recommendation adopted by the district court.
. The initial set of technical amendments specified applicability only to supplemental security income benefits. Congress did not simultaneously amend the parallel provisions applicable to disability insurance benefits. Later, it corrected this omission. See Ticket to Work and Work Incentives Improvement Act of 1999, Pub. L. No. 106-170, §§ 401(a), (c), 1999 U.S.C.C.A.N. (113 Stat.) 1860, 1906-07 (codified as amended at 42 U.S.C. § 405 (note)).
. This court has recently summarized the grounds for departure from both the law of the case and the mandate rule. There are three " 'exceptionally narrow' ” reasons to depart from the law of the case: " '(1) when the evidence in a subsequent trial is substantially different; (2) when controlling authority has subsequently made a contrary decision of the law applicable to such issues; or (3) when the decision was clearly erroneous and would work a manifest injustice.’ "
Huffman v. Saul Holdings Ltd. P’ship,