Opinion for the Court filed by Circuit Judge GINSBURG.
Making use of a tactic called “salting,” the International Brotherhood of Electrical Workers, Local No. 48 authorized several of its members to seek work at Tualatin Electric, a nonunion electrical contractor, in order to advocate union membership among Tualatin’s employees and to gather information that might assist the Union in an election campaign. Tualatin discharged' one such employee, or “salt,” because of his union activity and refused to hire four other job applicants because it suspected they were affiliated with the Union. The National Labor Relations Board held, in proceedings not here under review, that the dismissal and the refusals to hire were unfair labor practices in violation of the §§ 8(a)(1) and (3) of the National Labor Relations Act, 29 U.S.C. §§ 158(a)(1), (3).
See Tualatin Electric, Inc.,
After further proceedings the Board awarded backpay to the five discrimina-tees.
See Tualatin Electric, Inc.,
I. Background
In 1992 the Union began an effort to organize Tualatin by salting Project Thunder, a construction site at which Tualatin was a subcontractor. Under its “salt program,” the Union paid its agents working in non-union shops the amount necessary to bring their wages up to union scale; it also required salts to terminate their employment at the Union’s behest, or else to face substantial fines.
See Decision
at 3 n.l;
Tualatin II,
In July 1992 Edward Campbell, having agreed to salt Tualatin for the Union, sought and obtained a job as a journeyman electrician on Tualatin’s Project Thunder. Two weeks later he was cashiered.
Tualatin I,
Several months after Campbell’s botched reinstatement, Tualatin denied the employment applications of four other union salts, including Gary Mangel. The Board found that Tualatin had unlawfully refused to hire the four because it knew or suspected they were connected with the Union. The Board ordered that they be hired and that further proceedings be conducted to determine the amount of back-pay due each.
Tualatin II,
In those proceedings the ALJ rejected Tualatin’s argument that salts are not entitled to backpay under the Act. He also held that the salts’ backpay remedies should be calculated under the rubric of
Dean General Contractors,
The ALJ also resolved several issues regarding mitigation in favor of particular discriminatees. He concluded that the period for which Campbell was due backpay was not tolled by his departure from the Wal-Mart project; “inasmuch as the Ninth Circuit and the Board had concluded that his reinstatement was invalid, Campbell was not required to have accepted it under any circumstances.” Id. at 6. Nor was backpay tolled when Campbell resigned a salting job with another nonunion contractor at the direction of the Union; avoiding union discipline, ruled the ALJ, is “good cause” for quitting a nonunion job. Id. Finally, the ALJ held that backpay for Gary Mangel was not tolled when he refused several short-term jobs so that he would not lose his eligibility for a long- *717 term job under the rules of the Union’s hiring hall. Id. at 9.
The Board upheld the decisions of the ALJ in all respects, id. at 1-2, Member Hurtgen dissenting in part. Tualatin now petitions for review of the Board’s decision, and the Union intervenes on behalf of the Board.
II. Analysis
Tualatin challenges several of the legal principles the Board applied in calculating the amount of backpay due the dis-criminatees. We uphold the Board’s legal determinations so long as they are neither arbitrary nor inconsistent with established law.
See, e.g., Lee Lumber & Bldg. Material Corp. v. NLRB,
First, Tualatin argues that salts are necessarily ineligible for a backpay remedy, which “must be sufficiently tailored to expunge only the actual, and not merely speculative, consequences of’ an ULP.
Sure-Tan, Inc. v. NLRB,
On the merits, however, we agree with the Board that Tualatin’s argument is incompatible with the Supreme Court’s holding that, although he “serv[es] two masters,” a salt is an “employee” within the meaning of the National Labor Relations Act, 29 U.S.C. § 152(3).
NLRB v. Town & Country Elec., Inc.,
Second, Tualatin objects to the Board’s presumption that the discrimina-tees’ employment would not have ended with Project Thunder, which the Board based upon a line of cases originating with
Dean,
The Board contends that its reliance upon
Dean
in
Tualatin I
and
Tualatin II
precludes Tualatin from relitigating here the applicability of that case; in fact, however, the two earlier proceedings leave open the question whether
Dean
should be applied when calculating backpay for salts. In
Tualatin I
the only reference to
Dean
is “for the proposition that the question of whether backpay is due a discriminatee
*718
... is appropriately resolved during the compliance process.”
Tualatin I,
On the merits, Tualatin first suggests generally that the Dean rule is unduly complicated and prejudicial to employers in the construction industry, who in staffing an ever-changing roster of projects will often have lawful reasons for not transferring a particular employee. That is no basis, however, for concluding that Dean’s allocation of the burden of production is arbitrary or contrary to law.
The employer then claims that
Dean
should not be applied to salts.
Dean
places upon the émployer the burden of showing that an employee would not have been transferred in part because the relevant “[ejvidence ... would tend primarily to be in the possession of the respondent employer which controls the decision whether to transfer or reassign.”
Dean,
Tualatin overstates the degree to which the
Dean
presumption is based upon the employer’s superior access to evidence; that is but one of several reasons underpinning
Dean.
At least as important, per the Board, is the judgment that the policies of the Act make it undesirable “to apply a presumption in favor of an adjudicated wrongdoer while seeking to remedy the underlying unfair labor practice committed against the aggrieved employee.”
Dean,
Third, Tualatin objects to the Board’s determination that the salts “satisf[ied] their obligation to mitigate damages because they followed their normal pattern of seeking employment through the Union’s hiring hall.”
Decision
at 1. The employer claims first that the agency precedents the Board cites in support of this conclusion are distinguishable and in-apposite. That is of no moment, for the Board is entitled to elaborate upon its previous decisions in any way that it reasonably believes will advance the purposes of the Act. The Board did not unreasonably extend its precedents in applying here its rule that an employee’s normal job seeking efforts fulfill the duty to mitigate.
See Ferguson Elec.,
Tualatin also echoes an argument raised by Member Hurtgen in dissent: because salts were authorized to work on some nonunion jobs at the time they were dismissed or not hired, they should be required to seek nonunion work in mitigation. As Member Hurtgen put it, that the Union might not approve of such employment “cannot be a justification for a failure to mitigate.” Decision at 3. Although that position is certainly reasonable, it is not unreasonable for the Board to limit the duty to mitigate so as not to require a salt to accept employment that would subject him to union discipline or require him to abandon full union membership. We therefore uphold the Board in this respect as well.
Fourth, Tualatin challenges the Board’s decision that backpay continued to accrue after the Union announced the end of its salting campaign. According to Tualatin this is inappropriate because .the end of the Union’s organizing effort also would have marked the end of the salts’ employment. As the Board points out, however, what Tualatin ignores is that “the Union continued to authorize its members to work for the Respondent after [the end of the campaign] in order to obtain information in support of its area standards picketing.” Decision at 1 n.l. We therefore reject Tualatin’s argument.
Fifth, Tualatin contends that its backpay obligation to Campbell ended when he quit two days after Tualatin had “reinstated” him at the Wal-Mart Project. Because “Project Thunder was coming to a conclusion” while the Wal-Mart project “promised substantial additional work into the indefinite future,” Tualatin maintains that Campbell at least should have been required to keep working while he asked the Board for relief. “[PJublic policy reasons,” says Tualatin, “strongly support the work and grieve concept.” The Board, however, unanimously adopted the conclusion of the ALJ that Campbell’s quitting was not a breach of his duty to mitigate because, “as the Ninth Circuit and the Board had concluded that his reinstatement was invalid, Campbell was not required to have accepted it under any circumstances.” Decision at 6. The Board also noted that the Wal-Mart project was significantly further from Campbell’s home than was Project Thunder, making the two positions not “substantially equivalent.” Id. Tualatin nowhere explains why its policy judgment should outweigh the deference owed to the Board’s contrary judgment.
Alternatively, Tualatin claims the Board should have tolled Campbell’s back-pay as of his acceptance, with Union approval, of employment as a salt at another nonunion contractor. Campbell worked at that job for two weeks before quitting at the behest of the Union.
See Decision
at 2. The Board held that Campbell could, without reducing his entitlement to back-pay, resign rather than having to stay on that job and “subject himself to internal union discipline.”
Id.
Tualatin argues that the precedent cited by the Board,
Local 90 Operative Plasterers and Cement Masons’ Int’l Ass’n v. Bovinett,
Finally, Tualatin objects to the Board’s holding that Mangel did not breach his duty to mitigate by declining offers of short-term work so he could remain eligible, under the rules of the Union’s hiring hall, for a long-term assignment.
See Decision
at 9. The Board endorsed the ALJ’s determination that “[a] discriminatee may legitimately refuse a referral if he can reasonably expect to obtain employment in the future which would clearly be a better opportunity.”
Id.
(quoting
Plumbers Local 305, 297
NLRB 57, 60,
III. Conclusion
Because the Board’s Decision is reasonable and consistent with applicable law, we deny Tualatin’s petition for review and grant the Board’s application for enforcement.
So ordered.
