This is an appeal by the City of Janesville, Wisconsin from a preliminary injunction entered by the district court,
I
The facts material to the disposition of this appeal are not in dispute. Kenneth Jones commenced his employment as police officer with the City of Janesville on October 24, 1948 and was appointed Chief of Police effective January 2, 1975. He served continuously in that position until his discharge on June 30, 1979, nine days after he reached the age of fifty-five.
Jones was discharged pursuant to the City’s policy to compulsorily retire all employees in protective service occupations at the end of the calendar quarter in which they reach age fifty-five. The City permits one year extensions where compulsory retirement would create a hardship for an employee that could be alleviated within one year or where a one year extension would help resolve management problems for the City. See Administrative Policy Statement of February 24, 1977 (App. at 2). The City fashioned its retirement policy under the terms of the Wisconsin Retirement Fund (WRF) which, pursuant to state statute, sets age fifty-five as the normal retirement age for all “protective service officers” who participate in the WRF, regardless of the actual job performed. Wis. Stats., ch. 41.02(ll)(a)-(bb). As a participant in the WRF, the City pays the total cost of the retirement program for its police personnel and its contribution in this case amounts to approximately twenty-five percent of Jones’s annual salary. Prior to his scheduled retirement, Jones sought an indefinite extension of his retirement date, but his request was denied by the City’s Board of Police & Fire Commissioners. Jones was retired on June 30, 1979 and full retirement benefits were paid by the WRF. The City then conducted a nationwide search to fill the vacancy created by Jones’s retirement and selected an applicant from Saginaw, Michigan as his replacement.
Jones challenged his discharge in a suit brought under the ADEA, the Civil Rights Act, and the Fifth and Fourteenth Amendments. The EEOC then filed suit against the City to enforce Jones’s rights under the ADEA. 1 On October 19, 1979 the district court entered a temporary restraining order barring the appointment of Jones’s succes *1257 sor, who had been employed as acting Chief of Police, in order to preserve complete relief should Jones prevail. On December 13, 1979, the district court entered a preliminary injunction mandating Jones’s reinstatement pending a full determination on the merits of his complaint.
The district court found that the EEOC had made out a prima facie case of discrimination under the ADEA since the sole basis for the City’s decision to retire Jones was the fact that he had reached the mandatory retirement age. The court issued the preliminary injunction because it concluded that the EEOC had a reasonable likelihood of prevailing on the merits. In so ruling, the court stated that the issue was whether the City could show that age less than fifty-five is a bona fide occupational qualification (BFOQ) for the performance of Jones’s duties as police chief, rather than for the performance of other, more typical, police duties, such as those of a patrolman. In finding that it was reasonably likely that the City could not establish a BFOQ for the position of police chief, the court rejected the City’s argument that its mandatory retirement policy was based on what it regarded as the state legislature’s judgment embodied in the WRF that the compulsory retirement of protective service employees at age fifty-five, regardless of position, is in the best interest of all public safety personnel and the people they are required to serve throughout the state.
The City subsequently moved for reconsideration and a stay of the preliminary injunction order, and in reliance on
National League of Cities
v.
Usery,
Particularly as to legislation directed to age discrimination in employment, as distinguished from legislation compelling municipalities to pay certain minimum wages and to observe certain maximum hours for all employees, the presumption of constitutionality is sufficiently strong to support interlocutory injunctive relief.
From the order of the district court granting the preliminary injunction, the City of Janesville has appealed to this Court. 2
II
Appellate review of a preliminary injunction order is limited to the determination of whether the district court abused its discretion in deciding that the circumstances of the case justified injunctive relief.
Doran
v.
Salem Inn, Inc.,
The standard for granting a preliminary injunction requires the plaintiff to show that he is likely to prevail on the merits and that in the absence of its issuance he will suffer irreparable injury.
Doran, supra,
It is true, as the district court properly observed, that an exemption to a remedial statute must be narrowly construed, but in our judgment, especially in the context of a preliminary injunction proceeding, the district court’s construction of the exemption provided in Section 623(f)(1) of the ADEA is excessively narrow. In construing the statutory language “bona fide occupational qualification reasonably necessary to the normal operation of a particular business,” the court ascribed to the term “particular business” a meaning synonymous with the term “particular occupation,” namely, the position of police chief. Although our examination of the legislative history of the ADEA yields no support for such a construction, we find resort to the legislative history unnecessary since the plain meaning of the term “particular business” is not susceptible to interpretation. That a particular occupation may by definition be encompassed within the meaning of the term “particular business” is irrelevant; the Congress was certainly at liberty to limit the applicability of a BFOQ to a particular “occupation” rather than to a “business” if it so intended. Nor do we find reliance on our decision in
Hodgson
v.
Greyhound Lines, Inc.,
In this case, the City had the burden of establishing that its mandatory retirement program, as applied to the generic class of law enforcement personnel employed by the City to operate the “business” of its police department, falls within the terms of the BFOQ exemption provided under the ADEA. In attempting to meet this burden, the City conceded that it had not undertaken any empirical studies to show the relationship between age and the ability to perform a protective service function. Rather, in devising its retirement policy, the City relied on the Wisconsin Public Employees Retirement Act, which provides for a retirement fund for municipal employees and which permits the forced retirement of “protective service” employees at the age of fifty-five. Wis.Stats., ch. 41 et seq. The definition of “protective service” employees in the statute is deemed to include “policemen, including the chief and all other officers,” who are participants in the Wisconsin Retirement Fund. Wis.Stats., ch. 41.-02(ll)(a). The City regards this statute as a state legislative judgment, endorsed by the Janesville Common Council and its Board of Police & Fire Commissioners, that the mandatory retirement age for protective service jobs is in the best interest of all public safety personnel and the people they are required to serve throughout the state. In support of this position, the City submitted seven reports prepared by the Wisconsin Retirement Research Committee containing evidence that the mandatory retirement age is an expression of the Wisconsin legislature’s judgment that being younger than age fifty-five is a BFOQ for the generic class of protective service occupations.
The district court discounted the validity of this evidence because it failed to present an empirical analysis of the relationship between the mandatory retirement age and the performance of a particular protective service position, such as Chief of Police. However, for the reasons discussed above, this failure cannot be regarded as dispositive of the City’s ability to establish a BFOQ for the generic class of employees subject to its retirement program. Indeed, the district court found that the documentary evidence submitted by the City demonstrated that the state legislature was not deliberately discriminating against older workers in enacting its mandatory retirement program, but was acting on a good faith belief that the public safety required early retirement of all protective service *1259 employees. That the wisdom of a legislative act is not subject to judicial scrutiny requires no citation. Thus, but for the failure of the City’s evidence to address a BFOQ for the position of police chief, which we have determined was not required, the district court was apparently willing to accept the statutory presumption that age is a BFOQ for the class of protective service occupations covered under the Wisconsin Public Employees Retirement Act. Since the City relied on that legislative judgment in enacting its retirement program, it is not clear to us that the City is unlikely to succeed in showing that age is a BFOQ under its program, or conversely, that the plaintiff has a reasonable likelihood of sustaining its prima facie case after a full trial on the merits of the City’s BFOQ defense.
Ill
Nor do we agree that the plaintiff has made the requisite showing of irreparable injury to justify injunctive relief in this case. The purpose of a preliminary injunction is to preserve the object of controversy in its then existing condition,
i.e.,
to preserve the status quo.
Missouri-Kansas-Texas R. Co. v. Brotherhood of Ry. & S.S. Clerks,
The district court characterized these alleged hardships as having been created by the City due to its decision to compel Jones to retire, and in balancing the equities concluded that the failure to reinstate Jones to his former position during the pendency of the litigation would result in the deterioration of his skill and morale during that period which could not be cured by a final judgment ultimately reinstating him to his job with back pay. We find no basis in the record for such a conclusion. Reinstatement pending a trial on the merits, even in cases of race or sex discrimination, is an extraordinary remedy permissible only upon a substantial showing of irreparable injury.
Ekanem
v.
Health & Hospital Corp.,
IV
Finally, we note that although the City and amicus in this case have advanced considerable arguments in support of the contention that the ADEA is constitutionally infirm as applied to the states, we believe this issue to be one more properly addressed in the first instance to the district court on the trial of this action. We do not, however, intimate any view concerning the merits of this question nor do we express any views on the merits of the substantive claims asserted by the respective parties to this litigation. For the foregoing reasons, the order of the district court appealed from is reversed, the preliminary injunction is dissolved, and the cause is remanded to the district court for further proceedings not inconsistent herewith. The Clerk of this Court is directed to enter judgment accordingly.
REVERSED AND REMANDED.
Notes
. Section 7(c)(1) of the ADEA provides:
Any person aggrieved may bring a civil action in any court of competent jurisdiction for such legal or equitable relief as will effectuate the purposes of this Act: Provided, That the right of any person to bring such action shall terminate upon the commencement of an action by the Secretary to enforce the right of such employee under this Act.
29 U.S.C. § 626(c)(1). Pursuant to the President’s Reorganization Plan No. 1 of 1978, responsibility for enforcement of the ADEA was transferred from the Department of Labor to the EEOC. 43 F.R. 19807.
. On December 21, 1979, this Court denied a motion for stay pending appeal filed by the City.
. This section provides, in relevant part:
(a) It shall be unlawful for an employer—
(1) to fail or refuse to hire or to discharge ' any individual or otherwise discriminate against any individual with respect to his compensation, terms, conditions, or privileges of employment, because of such individual’s age .. .
29 U.S.C. § 623(a)(1).
