Wisconsin Central, LTD. (“WCL”), an interstate railroad company, brought a suit seeking declaratory and injunctive relief in federal court after the Illinois Department of Labor (“the IDOL”) began investigating claims that WCL had violated overtime regulations under the Illinois Minimum Wage Law, 820 III. Comp. Stat. 105/4a. The basis for WCL’s suit was that the *755 State’s overtime provisions were preempted by federal law. This preemption argument was based on two separate grounds: (1) that enforcing the Illinois law would require interpreting provisions in WCL’s collective bargaining agreements (“CBAs”) and was thus preempted by the federal Railway Labor Act (“RLA”), 45 U.S.C. §§ 151-188, which required that all CBA disputes be resolved in arbitration; and (2) that Congress’s regulation of the railways was so vast that field preemption applied. On cross-motions for summary judgment, the district court found for WCL on the first preemption claim, and thus did not address the field preemption issue. For the following reasons, we find that the issue of preemption under the RLA was not ripe for consideration, but that Congress has so occupied the field of railway regulation that Illinois’s overtime law is preempted as applied to the railways.
I. Background
WCL is a railroad that operates in Wisconsin, Minnesota, Michigan, and Illinois. In 2005, the IDOL received complaints from five WCL “signal maintainers” claiming they had been denied overtime wages owed under Illinois law. See 820 III. Comp. Stat. 105/4a. As signal maintainers, these employees fell within one of the four categories of WCL employees (which includes communications and signal employees, conductors, locomotive engineers, and maintenance-of-way employees) that work in Illinois and have entered into CBAs with the railway concerning the terms and conditions of employment.
Defendant Nancy McDonald, an IDOL compliance officer, was assigned to investigate these claims. McDonald sought to verify and corroborate the claimants’ allegations. After speaking with some of the
claimants, McDonald sent a letter to WCL’s Illinois office on August 22, 2006, requesting the company’s payroll records from September 2003 to the present for all signal maintainers. On September 5, WCL replied by letter, explaining its position that, because the signal maintainers were employed pursuant to a CBA entered into under the RLA, 45 U.S.C. § 151 et seq., that Act preempted the State’s overtime law. WCL received a response to this letter on January 29, 2007, in which McDonald explained that she was proceeding with her investigation since there was currently no Chief Counsel at the IDOL able to review WCL’s preemption claim. McDonald also stated that if WCL did not voluntarily comply with her records request, she would subpoena the railway to compel the payroll records’ production. See 820 III. Comp. Stat. 105/7(e). Moreover, McDonald noted that the IDOL would bring enforcement proceedings against WCL under 820 III. Comp. Stat. 105/12 if, after her investigation, it was determined that the Illinois Minimum Wage Law’s overtime provisions had been violated.
This prompted WCL to file, on February 21, 2007, a two-count suit in federal court seeking declaratory and injunctive relief. The suit, brought against McDonald and Catherine Shannon, the then-Acting Director and now Director of the IDOL, in their official capacities, claimed that enforcement of the State’s overtime law against WCL was preempted by federal law. Five days later, on February 26, the IDOL issued a subpoena to WCL, seeking the time and payroll records not only for the signal maintainers, but for every WCL employee at the company from September 1, 2003 to February 28, 2007. The IDOL subsequently agreed to extend the deadline for responding to the subpoe *756 na until after the resolution of WCL’s lawsuit.
On March 29, 2007, WCL amended its complaint to its present version. Count 1 sought declaratory relief, claiming that based on Congress’s vast regulation of the railway industry, field preemption applied, thus barring the Illinois Minimum Wage Law’s applicability to WCL. Count 2 sought to enjoin the IDOL from enforcing the Illinois Minimum Wage Law against WCL on the same grounds. Counts 3 and 4 sought the same relief as Counts 1 and 2, but on the basis that the RLA preempted Illinois’s overtime law from being enforced with respect to those workers employed pursuant to a CBA.
The IDOL filed a motion to dismiss WCL’s complaint on April 23, 2007. The district court converted the motion to dismiss to a motion for summary judgment, which WCL responded to with a cross-motion for summary judgment. On September 21, 2007, the district court issued a memorandum opinion and order, granting summary judgment for WCL and denying it for the IDOL. The district court found for WCL on the basis of the RLA’s preemptive force, reasoning that determining whether WCL had violated Illinois’s overtime provisions would require interpreting the applicable CBAs, something which the RLA mandates occur through an arbitration process outside the state or federal courts.
See Hawaiian Airlines v. Norris,
II. Discussion
This appeal raises two preemption issues: (1) whether the IDOL’s investigation and enforcement of Illinois’s overtime law is preempted by the RLA; and (2) whether field preemption precludes the State’s overtime provision’s applicability to the railway, on the basis of Congress’s comprehensive regulation of the rail industry. Because this appeal comes to this Court from cross-motions for summary judgment, we review the district court’s findings
de novo, Aux Sable Liquid Prods, v. Murphy,
A. Preemption Under the Railway Labor Act
The IDOL’s appeal focuses upon the district court’s finding that, “because the overtime claims being investigated by the [I]DOL involve interpretation and application of various provisions of the CBAs, the claims are preempted by the Railway [Labor] Act.”
Wis. Cent. Ltd. v. Shannon,
Congress’ purpose in passing the RLA was to promote stability in labor-management relations by providing a comprehensive framework for resolving labor disputes. To realize this goal, the RLA establishes a mandatory arbitral mechanism for “the prompt and orderly settlement” of two classes of disputes. The first class, those concerning “rates of pay, rules or working conditions,” are deemed “major” disputes.... The second class of disputes, known as “minor” disputes, “grow out of grievances or out of the interpretation or application of agreements covering rates of pay, rules, or working conditions.” Minor disputes involve “controversies over the meaning of an existing collective bargaining agreement in a particular fact situation.” Thus, “major disputes seek to create contractual rights, minor disputes to enforce them.”
In keeping with
Hawaiian Airlines,
this Court has affirmed, on a number of occasions, that preemption (or “preclusion” if a federal claim is brought)
2
under the RLA exists when “the success of the claim is dependent upon an interpretation of the collective bargaining agreement’s terms.”
Miller v. Am. Airlines, Inc.,
The district court, in its analysis, focused upon whether resolving an overtime claim brought by the IDOL against WCL “would require the application or interpretation of the CBAs.”
Wisconsin Central, Ltd.,
The main thrust of the IDOL’s appeal is that the district court failed to take the extra step of determining whether, at this stage of the proceedings, it was evident that an interpretation of WCL’s CBAs would be
“dispositive
” of liability in an overtime claim brought under Illinois law. Referencing the examples given above where this Court has noted that preemption/preclusion would be unnecessary, the IDOL argues that, particularly since as of right now, at the investigation stage, there is no dispute between the parties as to the CBAs’ terms as applied to the Illinois Minimum Wage Law, the dis
*759
trict court’s judgment was premature and overbroad. This argument is strikingly similar to a claim that this suit is not ripe for review, but the IDOL specifically argued in its brief to this Court that this suit is ripe for adjudication. This Court, however, is “obligated to consider [its] jurisdiction at any stage of the proceedings,”
Wisconsin v. Ho-Chunk Nation,
Ripeness is predicated on the “central perception ... that courts should not render decisions absent a genuine need to resolve a real dispute,”
Lehn v. Holmes,
In trying to ascertain whether WCL’s preemption suit under the RLA is of “sufficient immediacy and reality” to warrant review by this Court at this time, we are guided by the Supreme Court’s decision in
Abbott Labs,
where the Court stated that “ripeness determinations depend on ‘the fitness of the issues for judicial decision and the hardship to the parties of withholding court consideration.’ ”
Metro. Milwaukee Ass’n of Commerce v. Milwaukee County,
Here, the record is not sufficiently developed for this Court to engage in this “case-by-case factual analysis.” This Court’s precedent reflects that state law is only preempted if the resolution of the claim “is dependent upon an interpretation of the collective bargaining agreement’s terms.”
Miller,
As part of its finding that Illinois’s overtime provision was preempted, the district court incorrectly placed reliance upon language in
In re Bentz Metal Prods. Co.,
which states that, “[i]f the entitlement to wages (or other employee pay) or the amount due were at issue, the CBA would control; almost certainly, interpretation of the agreement would be necessary and would be subject to the arbitration procedures in the contract.”
The second requirement under
Abbott Labs
for determining ripeness— “the hardship to the parties of withholding court consideration,”
Abbott Labs.,
We are not holding that any claim of process preemption necessarily is ripe so that the court should consider the preemption claim before the process is completed. It well may be that in a particular case when conflict preemption is implicated the court may conclude that it reasonably can be anticipated that the process will yield a result that is not preempted.
Id. at 349 n. 18. Here, the claim that the IDOL’s investigation should be halted based upon the preemptive scope of the RLA is not ripe for consideration, since this is not a circumstance where the IDOL’s investigation and subsequent enforcement of the State’s overtime laws would invariably lead to a finding of preemption. As discussed above, even if the IDOL brought suit against WCL under the Illinois Minimum Wage Act, scenarios exist where it would be unnecessary for the CBAs to be interpreted in order to resolve the claim. Accordingly, the district court lacked jurisdiction to rule on WCL’s counts concerning preemption under the RLA.
B. Field Preemption
This Court “may affirm the district court’s grant of summary judgment on a ground other than that relied upon by the district court below, so long as the alternative basis finds adequate support in the record.”
Bombard v. Fort Wayne Newspapers,
Ripeness does not pose an obstacle to this Court hearing this claim.
See Abbott Labs.,
The preemption doctrine is grounded in the Constitution’s Supremacy Clause, which provides that, “This Constitution, and the Laws of the United States which shall be made in Pursuance thereof ... shall be the Supreme Law of the land.”
Hoagland v. Town of Clear Lake,
The long history of pervasive congressional regulation over the railway industry is undeniable, and the Supreme Court has observed that, “[r]ailroads have been subject to comprehensive federal regulation for nearly a century.”
United Transp. Union v. Long Island R.R. Co.,
Moreover, much of this federal legislation has been found to preclude state regulation over the railways. For example, as has already been discussed, the RLA’s goal of “providing a comprehensive framework for resolving labor disputes,” preempts state-law actions that would require interpreting a CBA.
Hawaiian Airlines,
The IDOL acknowledges that there is a great quantity of federal railway legislation and that certain railroad-related laws have a preemptive effect, but maintains that Congress has not sufficiently expressed its “clear and manifest” intent that Illinois’s overtime law be preempted as applied to the railroads, particularly since wages are an area traditionally left to state regulation.
See English v. General Elec. Co.,
Despite Congress’s comprehensive federal regulation of the railways and the preemptive sweep of many of these laws, the IDOL tries to defeat WCL’s claim by arguing that Congress has never sought to preempt state laws concerning wages, and instead has limited its preemptive intent to the resolution of labor disputes,
Hawaiian Airlines,
Of course, the mere absence of federal legislation with respect to overtime wages is not enough to find a congressional intent to preempt this field, since “[t]here is no federal pre-emption in vacuo, without a constitutional text or a federal statute to assert it.”
Puerto Rico Dep’t of Consumer Affairs v. Isla Petroleum Corp.,
Based on this precedent, the issue of overtime wages for railroad employees is not an area where Congress has simply neglected to act or “withdrawn from all substantial involvement.”
See Puerto Rico Dept. of Consumer Affairs,
The IDOL argues that this reading of the Adamson Act is too broad, and fails to appreciate that the law was passed in response to a unique and particularized threat to railway operations. While we recognize that the threatened strike was the catalyst for passing the law, the Act’s scope now reaches beyond the dispute giving rise to its enactment, as evidenced by the fact that the law remains in effect nearly a century later. See Act of Oct. 11, 1996, Pub.L. No. 104-287, Oct. 11, 1996, 110 Stat. 3394 (codifying the Adamson Act, without substantive changes, at 49 U.S.C. § 28301). Accordingly, Congress’s intent to leave the matter of wages subject to private negotiations, as articulated by the Court in Wilson, particularly when placed against the backdrop of Congress’s pervasive regulation of the railways and its clear intent that much of this regulation allow for no state supplement, leads us to conclude that Illinois’s overtime regulations, as applied to interstate railways, are preempted. 14
*766 III. Conclusion
For the foregoing reasons, We AffiRM the district court’s grant of summary judgment for WCL and denial of summary judgment for the IDOL on the alternate ground that federal law preempts 820 III. Comp. Stat. 105/4a’s applicability to interstate railroads like WCL, and Remand for the district court to dismiss Counts 3 and 4 for want of jurisdiction and issue an injunction and declaration consistent with this opinion as to Counts 1 and 2.
Notes
. In 1936, the RLA was amended to expand the Act’s applicability to the airline industry, in addition to the railroads.
Hawaiian Airlines,
. This Court has found “the preemption question sufficiently similar to the preclusion question to make the analysis employed in the RLA preemption cases applicable” in preclusion cases as well.
Brown v. Ill. Cent. R.R.,
. The overtime provision in Illinois's Minimum Wage Law provides that:
[N]o employer shall employ any of his employees for a workweek of more than 40 hours unless such employee receives compensation for his employment in excess of the hours above specified at a rate not less than 11/2 times the regular rate at which he is employed.
820 III. Comp. Stat. 105/4a(l). In determining whether this overtime law has been violated, it is necessary to calculate the “hours worked,” which is defined as:
all the time an employee is required to be on duty, or on the employer’s premises, or at other prescribed places of work, and any additional time he or she is required or permitted to work for the employer,
III. Admin. Code tit. 56, § 210.110, as well as the "regular rate” of pay, the formula for which varies depending upon the manner in which the employee is compensated, III. Admin. Code tit. 56, § 210.430 (differing calculations for employees paid on an hourly rate, "piece-rate” employees, salaried employees, and others), and includes multiple exclusions. III. Admin. Code tit. 56, § 210.410 (such as "when no work is performed due to a vacation, holiday, illness, failure of employer to provide sufficient work, or other similar cause”). The CBAs at issue in this case contain numerous provisions potentially relevant to calculating the "hours worked” and "regular rate” of pay, such as clauses pertaining to meal periods, on-call time, and travel time, among others.
. Pacific Railroad Act of 1862, ch. 120, 12 Stat. 489 (granting rights of way to construct a rail line).
. Interstate Commerce Act of 1887, 24 Stat. 379 (creating the Interstate Commerce Commission (ICC) to regulate rail shipping).
. Railway Labor Act of 1926, 44 Stat. 577 (codified as amended at 45 U.S.C. §§ 151— 188).
. This includes the Hours of Service Act of 1907, 34 Stat. 1415 (codified as amended at 49 U.S.C. §§ 21101-21108) and the Adamson Act of 1916, 39 Stat. 721 (codified as amended at 49 U.S.C. § 28301). The purpose of the Hours of Service Act was "to promote safety in operating trains by preventing the excessive mental and physical strain which usually results from remaining too long at an exacting task,”
Chicago & A.R. Co. v. United States,
. Safety Appliance Act of 1893, 27 Stat. 531 (codified as amended in scattered sections of 49 U.S.C.); Boiler Inspection Act of 1911, 36 Stat. 913 (codified as amended in scattered sections of 49 U.S.C.); Federal Railroad Safety Act of 1970, 84 Stat. 971 (codified as amended at 49 U.S.C. § 20101 et seq.).
. 49 U.S.C. § 20106 ("regulations, and orders related to railroad security shall be nationally uniform to the extent practicable”).
. Railroad Retirement Act of 1974, 88 Stat. 1305 (codified as amended at 45 U.S.C. § 231 et seq.).
. Railroad Unemployment Insurance Act of 1938, 52 Stat. 1094 (codified as amended at 45 U.S.C. § 351 etseq.).
. Regional Rail Reorganization Act of 1973, 87 Stat. 985 (codified as amended at 45 U.S.C. § 701 et seq.) (combined bankrupt railroads into the Consolidated Rail Corporation).
. This wage freeze provision stated:
That pending the report of the commission herein provided for and for a period of thirty days thereafter the compensation of railway employees subject to this Act for a standard eight-hour workday shall not be reduced below the present standard day's wage, and for all necessary time in excess of eight hours such employees shall be paid *765 at a rate not less than the pro rata rate for such standard eight-hour workday.
Wilson,
. Our decision is consistent with the Sixth Circuit's opinion fifteen years ago in
RJ. Cor-man Railroad Co.,
which
“h[e]ld
that the congressional purpose behind the Adamson Act and Congress’s longstanding decision to regulate railroads on a national level make it reasonable to infer that Congress has impliedly preempted the area of overtime regulation for railroad employees.”
Recent congressional action to clarify the preemptive sweep of other railway laws also indicates that Congress’s seeming acquiescence to the Sixth Circuit's opinion was not merely the result of an oversight on Congress’s part. In 2007, Congress amended the Federal Railroad Safety Act’s preemption provision in order to clarify that state-law causes of action seeking damages for injuries stemming from a violation of railway safely or
*766
security standards were not preempted. 49 U.S.C. § 20106(b). This amendment was passed in response to the Eighth Circuit's conclusion that the Federal Railroad Safety Act preempted state law personal injury claims related to a train derailment in Minot, North Dakota.
Lundeen
v.
Canadian Pacific Railway Co.,
Although we have arrived at our conclusion that federal law preempts the applicability of Illinois’s overtime law to interstate railroads independent of Congress's apparent acquiescence to R.J. Corman Railroad Co., Congress’s actions subsequent to that opinion reaffirm our decision to join our sister Circuit in holding that field preemption is applicable in this circumstance.
