Oregon State Department of Corrections (Department) seeks judicial review of final order of the Employment Relations Board (ERB). ERB determined that Department had committed an unfair labor practice, ORS 243.672(l)(e), when it refused to bargain with the Federation of Oregon Parole and Probation Officers, the collective bargaining representative of Department’s employees, before requiring an employee to submit to a drug test.

ERB relied on our opinion in Tualatin Valley Bargaining v. Tigard School Dist., 106 Or App 381, 808 P2d 101, rev allowed 312 Or 16 (1991), in holding that mandatory drug testing is a “matter concerning” employee discipline and job security, which are “other conditions of employment” within the meaning of ORS 243.650(7),1 thus making the testing a mandatory subject for bargaining. Department contends that we erred in that case by interpreting Portland Fire Fighters Assoc. v. City of Portland, 305 Or 275, 751 P2d 770 (1988), to have modified the analysis in Springfield Education Assn. v. School Dist., 290 Or 217, 621 P2d 547 (1980), to determine whether balancing was required.

Although we do not believe that we did that in Tualatin Valley, unless and until the Supreme Court rules otherwise, that case controls.

Affirmed.