This case involves the Surface Transportation Assistance Act of 1978 (“STAA”), Pub.L. 95-599, 92 Stat. 2689 (1978). The question presented is whether a local government’s minority set-aside program can withstand constitutional attack in the absence of investigation by the local government into past discrimination when the STAA did not specifically call for minority set-asides. The answer is “no.”
The dispute in this case arises out of the award of a federal construction contract (“contract Y-621”) for the electrified third rail of Miami’s Metrorail system. The estimated costs for contract Y-621 were several million dollars. The Urban Mass Transit Administration (“UMTA”) of the Department of Transportation (“DOT”) financed most of these costs through a federal grant, and Metropolitan Dade County (“Dade County”) contributed the remainder. Dade County required bidders on contract Y-621 either to involve minority business enterprises (“MBEs”) in 5% of the contract work or to demonstrate that the bidders made every reasonable effort to include such businesses. Dade County says it included the minority set-aside requirements in contract Y-621 in response to an UMTA Circular1 and a DOT Order.2 The UMTA Circular and DOT Order required grantees of UMTA-funded projects to adopt programs that insure that MBEs have equitable opportunities for participating in UMTA contracts.3
Appellant, H.K. Porter (“Porter”), was the low bidder on contract Y-621; Porter’s *764bid forms demonstrating compliance with the County’s minority set-aside requirements were left blank.4 The second lowest bidder submitted forms indicating that it would meet the 5% minority subcontracting requirement. The second lowest bidder objected to Porter’s bid, for its failure to comply with contract Y-621’s set-aside requirements. In turn, Porter filed an action in district court to compel the County to conduct an administrative hearing on Porter’s bid. The district court entered summary judgment and ordered Dade County to conduct an administrative hearing to determine whether Porter’s bid complied with the County’s set-aside requirements. After conducting the required hearing, the County’s contracting officer found that Porter’s bid did not comply and recommended award to the second lowest bidder. The district court also found that Porter had not made reasonable efforts to contract and to negotiate with MBEs and concluded that Porter’s bid did not comply with the pertinent set-aside requirements. Dade County then awarded the contract to the second lowest bidder. Because Porter had claimed no damages, but had only sought injunctive relief against the award of the contract, and because the contract had since been awarded, we dismissed an appeal to us as moot. H.K. Porter Co. v. Metropolitan Dade County, 650 F.2d 778 (5th Cir.1981).
Porter then filed a second lawsuit, claiming that the 5% minority set-aside in contract Y-621 was unconstitutional. This time, Porter sought damages as a result of not receiving the contract award. The district court concluded that the bidding procedure had been constitutional. Relying on the precedent of Fullilove v. Klutznick, 448 U.S. 448, 100 S.Ct. 2758, 65 L.Ed.2d 902 (1980), in which the Supreme Court approved the use of a 10% MBE set-aside mandated by Congress, we affirmed the district court’s summary judgment ruling. H.K. Porter Co. v. Metropolitan Dade County, 825 F.2d 324, 332 (11th Cir.1987) (Porter II).
The Supreme Court then granted certio-rari, vacated the judgment, and remanded the case for further consideration in the light of Richmond v. J.A. Croson Company, 488 U.S. 469, 109 S.Ct. 706, 102 L.Ed.2d 854 (1989).5 We remanded to the district court to develop the record on how Dade County had derived the 5% minority set-aside for contract Y-621. In the light of the evidence presented, and upon consideration of Croson and the more recent decision, Metro Broadcasting, Inc. v. FCC, 497 U.S. 547, 110 S.Ct. 2997, 111 L.Ed.2d 445 (1990), the district court reaffirmed its earlier judgment in defendant’s favor. H.K. Porter Co. v. Metropolitan Dade County, No. 81-2766 (S.D.Fla. July 13, 1990). This appeal followed. We reverse.
DISCUSSION
The Supreme Court’s precedents have applied different levels of scrutiny to “affirmative action” programs of federal, state, and local governments. According to Cro-son, if a state or local government has developed a minority set-aside, a court must strictly scrutinize the program. Under Fullilove, however, if Congress has expressly mandated such a program, then a more lenient standard, resembling intermediate scrutiny, is applicable.
When Porter II was written, only Fulli-love was in existence. In Porter II we did not explicitly evaluate the case under an “intermediate scrutiny” standard, but we did note that Dade County “in implementing the MBE provisions of contract Y-621, *765was relying on Congress’ legislative findings which clearly established that minorities were not participating in government contracts.” Porter II, 825 F.2d at 331. As a result, we held that under the circumstances of the case, Dade County was not constitutionally required to make additional findings of past discrimination for its MBE program. Id.
But Porter II was vacated by the Supreme Court and no longer has authority. See H.K. Porter Co. v. Metropolitan Dade County, 489 U.S. 1062, 109 S.Ct. 1333, 103 L.Ed.2d 804 (1989). The Supreme Court remanded the Porter case for reconsideration in the light of Croson. Id. Croson compels us to examine the enabling statute — in this case, the STAA — to see whether it requires state or local government development of minority set-asides. Under Croson, as we stated earlier, if a state or local government has created a minority set-aside program that was neither mandated nor specifically approved by Congress, a court must strictly scrutinize the program.6
In the present case, neither Congress nor the DOT specified a certain percentage minority set-aside. Congress in the STAA makes no mention of set-asides at all; instead, the Act just says that “affirmative action” should be taken to insure that no person is denied the benefits of or is subject to discrimination under the Act. Therefore, although “Congress’ legislative findings” inspired Congress to include the affirmative action language in the STAA,7 there was no express percentage set-aside requirement, as in Fullilove.8 Instead, the state or local government involved in- the project decides the appropriate kind of affirmative action policy.9
*766Congress’ call for affirmative action— that is, encouragement of increased representation of women and minority groups— is not synonymous with specific approval of the use of minority set-aside requirements. The UMTA Circular and DOT Order require goals for minority participation.10 But the UMTA Circular and DOT Order do not dictate a specific percentage set-aside, although they provide that some kind of set-aside “may be established” if “allowable under local law and appropriate to meet MBE goals.” UMTA Circular 1165.1, at 8; accord DOT4000.7A, at 6. What the local law in Dade County can allow, in the light of the federal constitution, is the issue here.11
In Cone Corp. v. Hillsborough County, 908 F.2d 908 (11th Cir.1990), we said, following Croson, that a county minority set-aside plan must be based upon “particularized” findings of earlier discrimination in the affected industry:
[A]t a base minimum, any plan must have more than an amorphous claim that there has been discrimination in a particular industry. Where plans establish quotas, the quotas must be tied to some injury suffered by the minority to be benefitted.
Cone, 908 F.2d at 913-14. Cone, because it involved a local government entity, required strict scrutiny review. Id. at 913. Therefore, it is clear that at least some kind of finding of earlier discrimination in the affected industry in the area is necessary before a local government — as opposed to Congress — may adopt a race-conscious program that sets aside certain work for minorities. Id. (“[Proponents of MBE laws ... must be able to show that there were actually instances of past discrimination, that the MBE plan is necessary to remedy the discrimination, and that the plan is narrowly tailored to that goal.”).12 A local MBE program that asserts percentage set-asides without reference to past discrimination cannot be tailored to remedying that discrimination.
When Dade County created the 5% minority set-aside, the County undertook no investigation to determine the degree to which anyone was actually either being (or had been) denied benefits or being (or had been) discriminated against in the pertinent contract’s specified industry.13 Therefore, the County did not know whether there was earlier discrimination or the extent of discrimination.14 Because Dade County had no knowledge of earlier discrimination *767in its area in the industry, we cannot justify the County’s program as a tailored effort to remedy past discrimination.15 So, the set-aside was not allowable.
Our decision today is not about what we personally think might be good public policy. It is about what Congress said and did not say in the STAA and about what the Supreme Court has said in Fullilove, Croson and Metro Broadcasting about Congress’ special place as policymaker on the important subject of minority set-asides. We stress that Dade County’s minority set-aside was neither approved nor mandated by Congress, not in general terms and certainly not in terms of a specific numerical set-aside. Because of the failure to tailor its 5% set-aside even to rough findings of earlier discrimination in the area, Dade County’s set-aside discriminates unconstitutionally.16 Therefore, the judgment of the district court is REVERSED.
. UMTA Circular 1165.1, UMTA Interim Minority Business Enterprise Policy and Requirements for Grant Recipients (December 30, 1977).
. DOT Order No. 4000.7A, Minority Business Enterprise Program (March 16, 1978).
.The STAA, in which Congress appropriated federal money for the construction of highways and mass transportation systems, is the source of the grant for Miami’s Metrorail system. The STAA seems to provide the authorization for DOT’S minority business program. See infra note 7.
. Instead, Porter attached a letter, written by R.E. Lillard, Manager of Transit Programs for Porter. The letter stated that no minority subcontractor could do the work required for the Metrorail third-rail contract.
. The Supreme Court’s decision on the issue of minority subcontracting in Croson, where it reviewed the City of Richmond’s attempt to create a 30% minority set-aside, was markedly different than it had been in Fullilove. Briefly stated, the Court in Croson applied the strict scrutiny standard, requiring the City to have made particularized findings of earlier discrimination in the industry and within the geographic area affected, and requiring that the minority set-aside would be narrowly tailored to go no further than necessary to remedy the present effects of prior discrimination.
. Dade County says that the STAA's statutory language is similar to that of the Airport and Airway Development Act of 1970 (“AADA”) which was recently at issue in S.J. Groves & Sons Co. v. Fulton County, 920 F.2d 752, 764 (11th Cir.1991). S.J. Groves was mainly about federal preemption of state laws. In remanding the case to district court for a further look at the preemption question, we said that certain DOT regulations for increasing minority business participation in construction projects were subject only to intermediate scrutiny because the AADA, a congressional act, authorized the regulations. But we did not reach or decide whether the AADA or its regulations did command the pertinent local government to include in its federally-required affirmative action program the minority set-aside requirement that was involved in S.J. Groves. We do not here address the constitutionality of the pertinent UMTA Circular or DOT Order; we assume they are valid. We are looking directly at Dade County’s acts.
. The STAA in pertinent part reads:
(a)(1) General — No person in the United States shall on the grounds of race, color, creed, national origin, sex or age be excluded from participation in, or denied the benefits of, or be subject to discrimination under any project, program, or activity funded in whole or in part through financial assistance under this Act. The provisions of this section shall apply to employment and business opportunities and shall be considered to be in addition to and not in lieu of the provisions of Title VI of the Civil Rights Act of 1964.
(2) Affirmative Action — The Secretary shall take affirmative action to assure compliance with subsection (a)(1) of this section.
49 U.S.C.A.App. § 1615.
. This case is also different from Metro Broadcasting, Inc. v. FCC, 497 U.S. 547, 110 S.Ct. 2997, 111 L.Ed.2d 445 (1990), relied on by the dissent. In Metro, the Court stressed that the FCC’s minority ownership programs were "specifically approved — indeed, mandated — by Congress,” and thus held that the Court owed deference to Congress’ judgment. Id. 497 U.S. at-, 110 S.Ct. at 3008. The Court noted that Congress specifically required the FCC, through appropriations legislation, to maintain its minority ownership policies without alteration. Id. 497 U.S. at-, n. 9,-, 110 S.Ct. at 3006 n. 9, 3013. In other words, Congress legislated severe financial repercussions if the FCC did not follow Congress' express desire to keep intact the minority ownership policies. Congress’ call for “affirmative action” in its STAA legislation was far less specific.
. Dade County argues that it is not required by Croson to have made its own findings of discrimination to establish a minority set-aside program. At first glance, it appears that many post-Croson courts agree with Dade County. See Ellis v. Skinner, 961 F.2d 912 (10th Cir.1992); Tennessee Asphalt Co. v. Farris, 942 F.2d 969 (6th Cir.1991); Milwaukee County Pavers Assn. v. Fiedler, 922 F.2d 419 (7th Cir.1991); Michigan Rd. Builders Assn. v. Blanchard, 761 F.Supp. 1303 (W.D.Mich.1991); Harrison and Burrowes Bridge Constructors, Inc. v. Cuomo, 743 F.Supp. 977 (N.D.N.Y., 1990). These courts held that Fullilove requires no additional local findings of discrimination by participants in federal-state programs. Each of these cases, however, is easily distinguishable on one important basis. The provisions under review in *766these cases involved a specific 10% set-aside expressly mandated by Congress.
. As we read the Circular and Order, "goals” and “set-asides" are different things. “Goal” means an aspirational target. We understand a "set-aside” to be one of several possible means that might be used for reaching the goal.
. The DOT and the UMTA never purport to make local government acts on minority set-asides, that would otherwise be unallowed, allowable or appropriate. Dade County could have attempted to meet the UMTA goal requirements without instituting a program that sets aside contracts for minority businesses that are not the lowest bidders or least expensive providers of the desired services. Even without a finding of historical discrimination, Dade County could have pursued many other avenues to meet its affirmative action goals, such as making an extra effort to notify minority businesses of bidding opportunities.
. In Cone, we reversed the district court’s entry of summary judgment against the County based on its set-aside program. We specifically noted that "the County MBE law was not the result of some vague government desire to right past wrongs. The law resulted from prolonged studies of the local construction industry that indicated a continuing practice of discrimination.” Cone, 908 F.2d at 915.
. Cf. Croson, 488 U.S. at 504, 109 S.Ct. at 727 (“Congress has made national findings that there has been societal discrimination in a host of fields. If all a state or local government need do is find a congressional report on the subject to enact a set-aside program, the constraints of the Equal Protection Clause will, in effect, have been rendered a nullity.”).
. The facts to which Judge Hatchett refers in his dissent deal with the County's investigation into the availability of minorities to perform work on contract Y-621. But we are writing about the County’s investigation into historical discrimination. As we understand the record, the County conceded that “no official of the County ... conducted an investigation or made a finding that persons defined in the contract as 'minority persons’ had suffered past discrimination in the awarding of contracts such as Contract Y-621.” See Plaintiff’s First Request for Admissions, R. Vol. 9, doc. no. 85, ¶ 57; Defen*767dant’s Response to Plaintiff’s First Request for Admissions, R. Vol. 9, doc. no. 85, ¶ 15.
. No need exists to remand this case for further factual findings. From the record before us, it is clear that the County made no investigation into past discrimination before creating the 5% minority set-aside. Because we hold that the County constitutionally was obligated to investigate past discrimination before adopting the race-conscious measure, nothing that the County would say at any further hearing would be of consequence to the particular set-aside program at issue in this case.
. Given our determination that Dade County’s inquiry into historical discrimination was completely inadequate, we need not reach the issue of whether the 5% goal reflects the numbers of minority subcontractors who are available to perform subcontracting work on the Miami Me-trorail contract.