Strikes by employees of mass transit districts, transportation districts and municipal bus systems. (1) It is unlawful for any employee of a mass transit district, transportation district or municipal bus system to strike or recognize a picket line of a labor organization while in the performance of official duties

(2) As used in this section:

(a) “Mass transit district” means a mass transit district established under ORS 267.010 to 267.394.

(b) “Transportation district” means a transportation district established under ORS 267.510 to 267.650. [2007 c.641 §2]