Before us are two appeals by Gerald M. Thomas (“Thomas”). The first is an appeal of the district court’s order granting summary judgment to the United States Postal Service (“Postal Service”) on Thomas’s religious discrimination claim, and the second is an appeal of the district court’s order granting a motion by the National Association of Letter Carriers (“NALC”) to dismiss Thomas’s state wrongful discharge and civil conspiracy claims. Exercising jurisdiction pursuant to 28 U.S.C. § 1291, we affirm.

I. BACKGROUND ^[1]

Thomas was employed by the Postal Service from February 28, 1987 to May 31, 1996. From February 1987 to November 1988, Thomas worked in a part-time flex position; from November 1988 to December 1990, Thomas worked as a regular mail carrier at the Wassail post office in Wichita, Kansas; and from December 1990 until his termination on May 31, 1996, Thomas worked a bid route at the Corporate Hills Station in Wichita.

The National Collective Bargaining Agreement (CBA) between the Postal Service and the NALC requires the Local Union to regulate employees’ days off pursuant to the Local Memorandum of Understanding (LMOU). By virtue of the LMOU, Thomas, along with the other 400-plus regular residential letter carriers, was placed on a rotating schedule that required him to work five Saturdays out of six. The rotating schedule was determined by a vote of the letter carriers, and Postal Service management had no authority to change the work schedule without union approval because doing so would violate the contractual commitment in the LMOU.

[*1153] Toward the end of 1993, Thomas became a member of the Church of God. One of the central tenets of the Church of God is strict observance of the Sabbath, which, for that religion, falls on Saturdays. In January 1994, Thomas informed station manager Mark Kerschen of his religious beliefs and asked if something could be done to allow him to receive all Saturdays off from work. Thomas also brought the matter up with Roy Martin, the postmaster, and Tom Brasser, the labor relations specialist at the Postal Service. In addition, Thomas spoke with Union stewards David Willits and Larry Gunkel about the matter.

In response to Thomas’s request, the Postal Service approved twenty-five of Thomas’s twenty-nine requests to take annual leave on Saturdays in 1994. In 1995, the Postal Service approved twenty of Thomas’s twenty-two requests to take annual leave on Saturdays. Postal Service management also allowed Thomas to trade with other letter carriers who voluntarily agreed to work for him' on Saturdays. The Postal Service suggested to Thomas that he change crafts and bid on a position that would not require him to work on Saturdays, as another letter carrier who had requested accommodation due to similar religious beliefs had done. ^[2] The Postal Service, however, also told Thomas that because of the seniority system which gives the most senior employees first choice for job assignments, Thomas’s lack of seniority would likely prevent him from successfully bidding for such a position. Thomas never bid for a position that would not require him to work on Saturdays. Roy Martin and Tom Brasser approached Gunkel, the President of the Local Union, to ask the Union to issue a waiver excusing Thomas from the LMOU-established Saturday work schedule. The Local Union refused to grant such a waiver.

Thomas suggested the following accommodation alternatives to enable him to observe his religious beliefs: (1) maintain his route as a letter carrier and receive Saturdays and Sundays off from work; (2) maintain his route as a letter carrier and have a substitute carry his route on Saturdays; (3) maintain his route as a letter carrier and have a part-time flexible or unassigned regular employee carry his route on Saturdays; (4) maintain his route as a letter carrier with all Saturdays off from work and be available to work on Sunday; and (5) maintain his route as a letter carrier, but only work four days a week. •

The Local Union would not agree to any of Thomas’s suggested accommodations on the theory that each would have permanently excused Thomas from working on Saturdays, thus each violated the LMOU. The Postal Service could not alter the LMOU on its own. Gunkel informed Thomas directly that it was not possible to grant him an exemption from the rotating schedule established by the LMOU so that he would not have to work on Saturdays.

Thomas refused to work on Saturdays, and was absent without leave several times when he was unable to use his leave. As a result, he received the following progressive discipline: (1) a seven-day suspension on 11/2/94 that was subsequently reduced to a letter of warning; (2) a fourteen-day suspension on 11/23/94 that was subsequently reduced to a seven-day suspension; (3) a fourteen-day suspension on 12/6/94; (4) a Notice of Removal on 1/9/95 that was held in abeyance provided Thomas was not absent without leave again; (5) a Notice of Removal on 6/16/95 which resulted in Thomas being removed; however his work assignment was held pending further grievance/arbitration procedures, which ultimately resulted in a pre-arbitration settlement on 1/5/96 that allowed Thomas to return to work with the understanding that he would work his bid assignment as posted; and (6) removal from[*1154] the Postal Service on 4/26/96 after Thomas was absent without leave again. ^[3]

Thomas filed suit against Marvin Runyon, the Postmaster General of the Postal Service, in federal district court in July, 1997, alleging that he was unlawfully discharged because of his religious beliefs. Approximately one year later, Thomas also filed suit against the Postal Service and the NALC in Kansas state court, alleging wrongful discharge and civil conspiracy in violation of state law. ^[4] The latter case was subsequently removed to federal court.

The district court granted the Postal Service’s motion for summary judgment on the religious discrimination claim on January 5, 1999. Thomas v. Runyon, 36 F.Supp.2d 1284, 1289 (D.Kan.1999). Thomas now appeals that ruling. In a separate opinion issued the same day, the district court granted the Postal Service and NALC’s motions to dismiss the wrongful discharge and civil conspiracy claims pursuant to Rules 12(b)(1) and 12(b)(6) of the Federal Rules of Civil Procedure. Thomas v. National Ass’n of Letter Carriers, 40 F.Supp.2d 1244, 1249 (D.Kan.1999). The court granted the Postal Service’s motion to dismiss on the ground that Title VII preempted Thomas’s state law claims against the Postal Service. In granting NALC’s motion to dismiss, the court found that Thomas’s claims against NALC constituted a claim for breach of the duty of fair representation, which was preempted by federal labor law and barred by the applicable six-month statute of limitations. The district court further held that even if the claims were not preempted, the motion to dismiss should still be granted because the complaint failed to state a claim upon which relief could be granted. Thomas does not appeal the district court’s order granting the Postal Service’s motion to dismiss, but he does appeal the order granting NALC’s motion to dismiss.

II. DISCUSSION

A. Religious Discrimination Claim

We review the district court’s grant of summary judgment de novo, applying the same legal standard used by the district court. Summary judgment is appropriate “if the pleadings, depositions, answers to interrogatories, and admissions on file, together with the affidavits, if any, show that there is no genuine issue as to any material fact and that the moving party is entitled to a judgment as a matter of law.” Fed. R.Civ.P. 56(c). When applying this standard, we view the evidence and draw reasonable inferences therefrom in the light most favorable to the nonmov-ing party. If there is no genuine issue of material fact in dispute, we determine whether the district court correctly applied the substantive law.

Greene v. Barrett, 174 F.3d 1136, 1139 (10th Cir.1999) (internal citations omitted).

Title VII makes it “an unlawful employment practice for an employer ... to discharge any individual, or otherwise to discriminate against any individual with respect to his compensation, terms, conditions, or privileges of employment, because of such individual’s ... religion.” 42 U.S.C. § 2000e-2(a)(l). “Religion” is defined to include only those “aspects of religious observance and practice” that an[*1155] employer is able to “reasonably accommodate .... without undue hardship on the conduct of the employer’s business.” 42 U.S.C. § 2000e(j). Title VII imposes an obligation on the employer “to reasonably accommodate the religious practices of an employee or prospective employee, unless the employer demonstrates that accommodation would result in undue hardship on the conduct of its business.” 29 C.F.R. § 1605.2(b)(1), (2) (1999) (citing TWA v. Hardison, 432 U.S. 63, 74, 97 S.Ct. 2264, 2271-72, 53 L.Ed.2d 113 (1977)).

This statutory and regulatory framework, like the statutory and regulatory framework of the Americans with Disabilities Act (ADA), involves an interactive process that requires participation by both the employer and the employee. See Ansonia Bd. of Educ. v. Philbrook, 479 U.S. 60, 69 107 S.Ct. 367, 372, 93 L.Ed.2d 305 (stating that, consistent with the goals expressed in the legislative history of the religious accommodation provision, “courts have noted that bilateral cooperation is appropriate in the search for an acceptable reconciliation of the needs of the employee’s religion and the exigencies of the employer’s business”) (internal quotations and citations omitted); Smith v. Pyro Mining Co., 827 F.2d 1081, 1085 (6th Cir.1987) (“Although the burden is on the employer to accommodate the employee’s religious needs, the employee must make some effort to cooperate with an employer’s attempt at accommodation.”); cf. Smith v. Midland Brake, Inc., 180 F.3d 1154, 1171-72 (10th Cir.1999) (en banc) (discussing the interactive process between an employer and an employee under the ADA). ^[5]

In the summary judgment context, we apply the principles outlined above through the familiar burden shifting approach set forth in McDonnell Douglas Corp. v. Green, 411 U.S. 792, 93 S.Ct. 1817, 36 L.Ed.2d 668 (1973). See Smith, 180 F.3d at 1178-79. ^[6] To survive summary judgment on a religious discrimination claim of failure to accommodate, the employee initially bears the burden of production with respect to a prima facie case. The employee must show that (1) he or she had a bona fide religious belief that conflicts with an employment requirement; (2) he or she informed his or her employer of this belief; and (3) he or she was fired for failure to comply with the conflicting employment requirement. See Toledo v. Nobeb-Sysco, Inc., 892 F.2d 1481, 1486 (10th Cir.1989) (citation omitted). Here, there is no dispute that Thomas established a prima facie case.

[*1156] The burden then shifts to the employer to (1) conclusively rebut one or more elements of the plaintiffs prima facie case, (2) show that it offered a reasonable accommodation, ^[7] or (3) show that it was unable reasonably to accommodate the employee’s religious needs without undue hardship. See id.

The Postal Service took the following steps to try to accommodate Thomas’ religious beliefs: it approved Thomas’ use of leave on Saturdays, it approved the use of substitutes for him on Saturdays when such substitutes could be found; it sought a waiver from the union of the requirement that all letter carriers work five out of six Saturdays; and it recommended that Thomas bid for a position that would not require him to work on Saturdays, even though it also told him he was unlikely to succeed in getting such a position because of the governing seniority agreement and Thomas’s lack of seniority.

Against this backdrop, we consider the five accommodation requests made by Thomas. The district court found that all five of Thomas’s requests would have violated the LMOU. See Thomas, 36 F.Supp.2d at 1287-88. Thomas has not argued that this finding was incorrect. Moreover, Thomas has not included a copy of the LMOU in the record on this appeal, so we have no basis for concluding that the district court’s finding was in error. Thus, we accept the district court’s finding that all five of Thomas’s suggested accommodations would have violated the LMOU. See Naimie, 174 F.3d at 1113 (“[W]here appellant fails to submit sufficient portions of the record, an appellate court cannot review the district court’s factual findings and must accept them as correct.”) (quotations and citations omitted). Under Hardison, the duty to accommodate Thomas’s beliefs does not require the Postal Service to violate the LMOU. See Hardison, 432 U.S. at 79, 97 S.Ct. 2264 (“[W]e do not believe that the duty to accommodate requires [the company] to take steps inconsistent with the otherwise valid [collective bargaining] agreement.”); Lee v. ABF Freight Sys., Inc., 22 F.3d 1019, 1023 (10th Cir.1994) (“Nor does Title VII require an employer to violate a valid labor agreement to accommodate an employee.”). Requiring such a violation through any of Thomas’s suggested accommodations would result in an undue hardship on the conduct of the employer’s business.

Thomas argues that the Postal Service should have provided more active assistance in helping him locate a “voluntary permanent swap” for Saturdays, and that such assistance would not have violated the LMOU. However, the district court found that this accommodation also would have violated the LMOU, see Thomas, 36 F.Supp.2d at 1288, and again, without the LMOU in front of us on appeal, we accept this finding as correct. In addition, the record does not indicate that Thomas ever made such a request at the time that the reasonable accommodation was being sought. Although an employer has a duty reasonably to accommodate an employee’s religious beliefs or to show that reasonable accommodation cannot be made without undue hardship, this duty does not obligate the employer to consider and preclude an infinite number of possible accommodations. In the interactive process between employer and employee, the employer here considered every accommodation requested by Thomas and rightfully rejected each as unduly, burdensome. In addition, it remained sympathetic to Thomas’s religious requirements, approved all voluntary schedule swaps that Thomas was able to arrange, and imposed no restrictions or impediments on Thomas’s ability to attempt to arrange further voluntary schedule swaps with other employees. This is all that Title VII reasonably requires the[*1157] Postal Service to do. 29 C.F.R. § 1605.2(d)(l)(i).

We have, in a closely analogous case, held that actions similar to those of the Postal Service here constitute all that is reasonably required of an employer to accommodate the employee’s religion. In United States v. Albuquerque, 545 F.2d 110 (10th Cir.1976), we held that an employer had done all that was reasonably required under 42 U.S.C. § 2000e-2 once it had encouraged the employee to try to find another employee to swap shifts with him so that he could avoid working on Saturdays in violation of his religious beliefs. We held that it would have been unreasonable to require the employer to go further and attempt to arrange a schedule swap for the plaintiff. We recognized the interactive and reciprocal duties inherent in a reasonableness analysis, and concluded that the employer had done all that was reasonably required of it when it was amenable to, and receptive to, efforts that the employee could have conducted for himself to arrange his own schedule swap. We believe the holding of that case is controlling here. See also Pyro Mining Co., 827 F.2d at 1088 (holding that so long as the plaintiff had no religious constraints against arranging his own schedule swap with other employees, it would be a sufficient reasonable accommodation for the employer simply to be amenable to such a swap without requiring the employer itself actively to solicit other employees to make such a swap); Lee, 22 F.3d at 1022-23 (“The defendant’s efforts to reach a reasonable accommodation triggered [the plaintiffs] duty to cooperate.”); Brener v. Diagnostic Ctr. Hosp., 671 F.2d 141, 144-46 (5th Cir.1982). ^[8]

Finally, at no time did Thomas ever prove that further voluntary swaps were possible or even likely. As such, he faded to prove that further efforts by the Postal Service to arrange voluntary schedule swaps were even a possible reasonable accommodation. See Smith, 180 F.3d at 1174.

We conclude that the employer has met its burden under Title VII, and that Thomas has not shown that there is a genuine issue remaining for trial. Summary judgment on Thomas’s religious discrimination claim was appropriate. ^[9]

B. State Law Claims Against NALC for Wrongful Discharge and Civil Conspiracy

We review de novo the district court’s order granting a motion to dismiss under Rules 12(b)(1) and 12(b)(6) of the Federal Rules of Civil Procedure. See Ordinance 59 Ass’n v. United States Dep’t of the Interior Secretary, 163 F.3d 1150, 1152 (10th Cir.1998). “Accepting the complaint’s allegations as true, we consider whether the complaint, standing alone, is legally sufficient to state a claim upon which relief may be granted.” Id. (internal quotations and citations omitted).

[*1158] We agree with the district court that Thomas’s claims against NALC constituted a claim for breach of the duty of fair representation, which was preempted by federal labor law and barred by the applicable six-month statute of limitations.

Where a plaintiffs allegations fall within the scope of the duty of fair representation, federal labor law governs and ordinarily preempts any state-law claims based on those allegations. See Vaca v. Sipes, 386 U.S. 171, 177, 87 S.Ct. 903, 910, 17 L.Ed.2d 842 (1967); BIW Deceived v. Local S6, Indus. Union of Marine and Shipbuilding Workers, 132 F.3d 824, 830 (1st Cir.1997); Richardson v. United Steelworkers, 864 F.2d 1162, 1170 (5th Cir.1989). Although Thomas framed his state law claims under state wrongful discharge and civil conspiracy theories, those claims against NALC actually amount to a claim for breach of the duty of fair representation. Thomas’s wrongful discharge and civil conspiracy claims against NALC are premised on the notion that NALC wrongfully agreed with the Postal Service to discharge Thomas because of his religious beliefs, and that the discharge was in violation of Kansas public policy protecting the free exercise of religion. Under federal labor law, a union has a duty to represent fairly all employees for whom it serves as a bargaining agent, and it may be liable for breach of the duty of fair representation when its conduct “toward a member of the collective bargaining unit is arbitrary, discriminatory, or in bad faith.” Vaca, 386 U.S. at 190, 87 S.Ct. 903. The duty of fair representation requires NALC “to serve the interests of all members without hostility or discrimination toward any, to exercise its discretion with complete good faith and honesty, and to avoid arbitrary conduct.” Id. at 177, 87 S.Ct. 903. We agree with the district court that this duty “would certainly encompass the alleged actions of the Union of ‘act[ing] in concert [with the Postal Service] to discriminate against plaintiff due to his religious belief in observing the Sabbath’ and ‘agreeing] that plaintiff should be discharged.’ ” Thomas v. National Ass’n of Letter Carriers, 40 F.Supp.2d 1244, 1247 (quoting Thomas’s Petition at ¶¶ 7 & 8).

Thomas argues that even if his claims amount to a breach of the duty of fair representation, they fall within the exception to preemption recognized in Farmer v. United Brotherhood of Carpenters, 430 U.S. 290, 296-97, 97 S.Ct. 1056, 1061, 51 L.Ed.2d 338 (1977), for overriding state interests “deeply rooted in local feeling and responsibility.” The exception to preemption set forth in Farmer, however, requires, in addition to such a strong state interest, a showing that (1) the state tort is “unrelated to” the federal law, or (2) the state tort is “a function of the particularly abusive manner” in which the discrimination is accomplished rather than a function of the actual discrimination itself. Farmer, 430 U.S. at 305, 97 S.Ct. 1056. Thomas has not met either of these requirements.

Therefore, because Thomas’s wrongful discharge and civil conspiracy claims amount to a claim for a breach of the duty of fair representation and a Farmer exception to preemption does not apply, Thomas’s claims are preempted by federal labor law. Because Thomas did not bring a federal claim within the applicable six-month statute of limitations for claims asserting a violation of the duty of fair representation, such a federal claim is now barred as untimely. See DelCostello v. International Bhd. of Teamsters, 462 U.S. 151, 169-70, 103 S.Ct. 2281, 2293-94, 76 L.Ed.2d 476 (1983) (holding that six-month statute of limitations period for filing unfair labor practice charges applies to employee’s action for breach of the duty of fair representation); Arnold v. Air Midwest, Inc., 100 F.3d 857, 859 (10th Cir.1996) (noting that six-month statute of limitations applies to a duty of fair representation claim). The district court correctly granted the motion to dismiss. ^[10]

[*1159] III. CONCLUSION

For the foregoing reasons, we AFFIRM the district court’s orders granting the Postal Service’s motion for summary judgment and NALC’s motion to dismiss.