Richard Glover appeals the judgment dismissing as time-barred his class action, under Sec. 301 of the Labor Management Relations Act, 29 U.S.C. Sec. 185(a), for breach of contract and breach of the duty of fair representation. The district court applied the six-month statute of limitations set forth in DelCostello v. International Brotherhood of Teamsters, 462 U.S. 151, 103 S.Ct. 2281, 2285, 76 L.Ed.2d 476 (1983), for hybrid contract/duty of fair representation actions. We affirm.

In 1981, the Supreme Court held that the applicable statute of limitations for an action against an employer, following an arbitration award, was the state statute of limitations for vacation of an arbitration award. United Parcel Service, Inc. v. Mitchell, 451 U.S. 56, 62, 101 S.Ct. 1559, 1563, 67 L.Ed.2d 732 (1981). At that time, this court applied the vacation of arbitration award limitation to actions against the union as well as actions against the employer. Singer v. Flying Tiger Line, Inc., 652 F.2d 1349, 1353 (9th Cir.1981). Glover's cause of action, which in effect follows an arbitration award, accrued on August 9, 1982. Oregon's limitation for vacating arbitration awards, Or.Rev.Stat. Sec. 33.310, allowed twenty days for appeal. Under Singer that is the only statute of limitations upon which Glover could have relied in filing an action against either his employer or his union.

In 1983, we reviewed Singer and concluded that the same statute of limitations should not apply to the union as to the employer. McNaughton v. Dillingham Corp., 707 F.2d 1042, 1047 n. 6, 1048 (9th Cir.1983) (McNaughton I ) reh'g denied, 722 F.2d 1459 (9th Cir.1984), cert. denied, --- U.S. ----, 105 S.Ct. 291, 83 L.Ed.2d 227 (1984). Instead, we applied the two year Oregon statute of limitations for malpractice actions to the claim against the union. Id. at 1049. Subsequently, DelCostello, borrowing from Sec. 10(b) of the National Labor Relations Act, 29 U.S.C. Sec. 160(b), adopted a six month statute of limitations for hybrid actions against unions and employers.

Despite appellant's protestations, we have no difficulty giving DelCostello retroactive application in this case. Where we have refused retroactive application in the past, its effect would have been to shorten the applicable state statute. Barina v. Gulf Trading and Transp. Co., 726 F.2d 560, 563-64 (9th Cir.1984); McNaughton v. Dillingham Corp., 722 F.2d at 1461 (9th Cir.1984) (McNaughton II ); Edwards v. Teamsters Local Union No. 36, 719 F.2d 1036, 1040 (9th Cir.1983), cert. denied --- U.S. ----, 104 S.Ct. 1599, 80 L.Ed.2d 130 (1984). See also, Scoggins v. Boeing Company, Inc., 742 F.2d 1225, 1227 (9th Cir.1984). In the case before us, the cause of action accrued before McNaughton I abrogated Singer, McNaughton I, 707 F.2d at 1047, n. 6, when the applicable state statute for actions against both the union and the employer was twenty days. The retroactive effect of DelCostello is to lengthen, not shorten, the time in which Glover could have filed.

Application of DelCostello in this case also comports with the requirements set forth in Chevron Oil Co. v. Huson, 404 U.S. 97, 92 S.Ct. 349, 30 L.Ed.2d 296 (1971), for gauging the appropriateness of retroactivity of statutes of limitation. Id. at 106-07, 92 S.Ct. at 355. We consider the first and third of these requirements together because they are closely related. Both are satisfied. Although DelCostello establishes a new principle of law and overrules precedent upon which litigants may have relied, Glover has not so relied to his detriment, as we have already noted. The change in the law thus works no inequity.

The second Chevron requirement is also satisfied; retroactive operation of the DelCostello rule in this case will further the rule's operation. Glover's situation does not exactly fit the DelCostello model in which the employer is alleged to have committed one wrong while the union has committed a separate, but related wrong. Rather, Glover alleges that the union and the employer have wronged him in joint violation of the collective bargaining agreement. He suggests that the facts in this case give rise not to a hybrid claim, but to a cause of action based solely on the collective bargaining agreement. We read DelCostello to apply not only when the gravamen of the action is breach of the duty of fair representation, but also to claims for alleged violations of the collective bargaining agreement. Moreover, we disagree with Glover's assessment of his own claim.

This is exactly the kind of hybrid claim to which, in deciding DelCostello, the Supreme Court wished a uniform statute of limitations to apply. DelCostello put to rest the proliferating cases in which the various district and circuit courts were applying a bewildering variety of local statutes of limitations to cases challenging the conduct of employers and unions with reference to labor grievances. By whatever nomenclature plaintiff's attorneys captioned their claims, these cases usually involved two complaints: (1) the employer had acted contrary to the bargaining agreement in making some personnel decision, and (2) the union either had acted contrary to the agreement or had violated the worker's Sec. 301 rights in failing to prosecute the worker's grievance to the worker's satisfaction.

The waste of time and resources in pursuing these claims under an almost infinite variety of local limitations statutes, and the spectacle of workers pursuing nonexistent remedies against the union when the same grievance against their employer was time-barred, had vexed the courts for some time. DelCostello gave the Supreme Court the opportunity to pull all these cases together under one well-known statute of limitations that had long been recognized by the labor-law bar.

Glover's claim mirrors elements of other cases which the Supreme Court examined before concluding that for hybrid claims the same statute of limitations should apply to employers as to unions. Glover's claim involves, "those consensual processes that federal labor law is chiefly designed to promote--the formation of the collective agreement and the private settlement of disputes under it." DelCostello, 103 S.Ct. at 2289, quoting UAW v. Hoosier Cardinal Corp., 383 U.S. 696, 702, 86 S.Ct. 1107, 1111, 16 L.Ed.2d 192 (1966). It involves a claim against the employer which is "inextricably interdependent" with the claim against the union. DelCostello, 103 S.Ct. at 2290, quoting Mitchell, 451 U.S. at 66-67, 101 S.Ct. at 1565-66. Finally, it is a claim on which "[t]he employee, may, if he chooses, sue one defendant and not the other; but the case he must prove is the same whether he sues one, the other, or both." DelCostello, 103 S.Ct. at 2291.

Not to apply DelCostello in Glover's instance would be to thwart its clear purpose in making uniform the statute of limitations applied to employers and to unions when the claim is at once for breach of duty of fair representation and for breach of contract. Glover's claim is just such a claim.

Affirmed.