ORDER ON MOTION FOR PRELIMINARY INJUNCTION
KOVACHEVICH, District Judge.
This cause of action is before the Court on the following motions, responses, and documents in support thereof:
• Plaintiffs’ motion for preliminary injunction and memorandum in support thereof, filed April 18, 1989. (Docket Nos. 3 and 4).
• Affidavit of Douglas P. Cone in support of motion for preliminary injunction, filed April 27, 1989. (Docket No. 6).
• Defendants’ analysis and summary of City of Richmond v. J.A. Croson, filed May 26, 1989. (Docket No. 13).
• Plaintiffs’ notice of supplemental authority and discussion thereof, filed June 9, 1989. (Docket No. 16).
• Transcript of evidentiary hearing of June 16, 1989, filed June 19, 1989, and exhibits thereto. (Docket No. 20).
• Plaintiffs’ separate memorandum of analysis of City of Richmond v. J.A. Croson, filed June 27, 1989. (Docket No. 30).
• Deposition of E.L. Bing, taken June 21, 1989, and filed July 6, 1989.
• Deposition of Spencer Albert, taken June 21, 1989, and filed July 6, 1989.
• Deposition of Robert Gilder, taken June 21, 1989, and filed July 6, 1989.
• Plaintiffs’ response to Defendant’s memorandum in opposition to Plaintiff’s motion for a preliminary injunction, filed July 17, 1989. (Docket No. 25).
• Defendants’ memorandum in opposition to petition for preliminary injunction, filed July 19, 1989. (Docket No. 26).
Complaint in this cause of action was filed April 18, 1989, by Plaintiffs, The Cone Corporation; J.W. Conner & Sons, Inc.; Cone Constructors, Inc.; and Dallas 1 Construction & Development, Inc. against Defendants Hillsborough County and Larry J. Brown, Administrator of Hillsborough County.
The complaint alleged Defendants had, since at least 1984, engaged in a pattern and practice, and has had a custom and policy, of discrimination in the construction industry in favor of certain racial and ethnic groups and in favor of females, pursuant to County Resolution No. R88-0173 and Administrative Order implementing same. On August 15,1989, Plaintiffs amended the complaint to add the following Plaintiffs: Bulger Contracting Co.; Boyce Company; S & E Contractors, Inc.; Woodruff & Sons, Inc.; and Suncoast Utility Contractors Association.
FACTUAL BACKGROUND
1. Plaintiffs are challenging Hillsborough County Board of County Commissioners Resolution No. R88-1073 (the Resolution), adopted by the Board of County Commissioners (Board or Commission) June 29, 1988, and implemented through an Administrative Order. The current resolution is the latest in a succession of similar resolutions, the first was passed in 1984.
2. The preceding resolutions were: No. R84-1003, adopted June 20, 1984; R860170, adopted August 27, 1986; and R870249, adopted September 8, 1987. The current Resolution, as well as the preceding resolutions, implement a minority business contracting program.
3. In 1978 the Board adopted a minority-female vendor contractors program, which was essentially a voluntary program. The program required Hillsborough County