Lockouts and employee strikes prohibited when emergency or public safety services imperiled

(a) In general Subject to subsection (b), any employer, emergency services employee, or law enforcement officer, subject to the rules and activities of the Authority under section 4, may not engage in a lockout, strike, or any other organized job action of which a reasonably probable result is a measurable disruption of the delivery of emergency or public safety services. No labor organization may cause or attempt to cause a violation of this subsection. (b) No preemption Nothing in this section shall be construed to preempt any law of any State or political subdivision of any State with respect to strikes by emergency services employees or law enforcement officers.