These appeals are before this Court pursuant to our Supreme Court’s order vacating our orders in Docket Nos. 187236 and 187801 (currently
*522
Docket Nos. 197795 and 197794, respectively), remanding those cases for consideration as on leave granted, ordering them consolidated with Docket Nos. 192470 and 193765, and directing the parties “to brief and argue the effect of conflicting orders from [the Michigan Employment Relations Commission (MERC)] and the Act 312 arbitration panel.”
City of Jackson v Jackson Fire Fighters Ass’n, Local 1306,
i
Strikes by public employees are forbidden by § 2 of the public employment relations act (pera), MCL 423.202; MSA 17.455(2). Section 15 of the PERA, MCL 423.215; MSA 17.455(15), requires a public employer to bargain collectively with the representatives of its employees “with respect to wages, hours, and other terms and conditions of employment. . . .” Issues falling into those categories are deemed to be
mandatory
subjects of bargaining, while all other matters are considered to be
permissive
bargaining subjects.
Local 1277, Metropolitan Council No 23, AFSCME, AFL-CIO v Center Line,
Applying these principles to the present facts, we note that the crux of these appeals is art 8, § 8.1 of the July 1, 1988, to June 30, 1991, collective bargaining agreement between the city and the Jackson Fire Fighters Association, Local 1306, IAFF, AFL-CIO (the union), which states, in pertinent part, “The City shall at all times maintain a minimum complement of fif *524 teen (15) 24-hour fire fighters on duty on each shift.” The union demanded the retention of § 8.1 in the parties’ proposed 1991-94 labor contract, contending that it was a mandatory subject of collective bargaming. The city, wishing to reduce per-shift staffing, objected, maintaining that § 8.1 was a permissive bargaining subject. When the parties reached an impasse, the issue was submitted to arbitration pursuant to Act 312. The arbitration panel ruled that § 8.1 constituted a mandatory subject of bargaining within the panel’s jurisdiction, concluded that the city’s proposed reduction in per-shift manning would adversely affect fire fighter safety, and ordered that § 8.1 be retained unchanged in any 1991-94 agreement.
Pursuant to the city’s petition for review and the union’s complaints, the Jackson Circuit Court affirmed the arbitration panel’s award and entered a permanent injunction ordering the city to comply with § 8.1. This Court denied the city’s applications for leave to appeal these rulings, Docket Nos. 187236 and 187801.
Meanwhile, the city filed an unfair labor practice charge with the merc, accusing the union of unlawfully demanding that the city bargain with respect to § 8.1. The hearing referee rejected the union’s argument that, because the Act 312 arbitration panel had already held § 8.1 to be mandatorily bargainable, the MERC was preempted from addressing that issue. The referee stated, “It is clear . . . that the [MERC] is not bound by the panel’s decision regarding whether the daily staffing provision is a mandatoiy subject of bargaining; just the reverse is true: the arbitration panel is bound by the [merc’s] determinations.” The referee also found “the daily minimum manning provision to *525 be a permissive subject of bargaining only,” and ruled that the union had violated its bargaining duty under the PERA by “submitting this proposal to an Act 312 arbitration.”
On March 20, 1996, the MERC issued a unanimous decision and order affirming the decision of the hearing referee, holding that the arbitration panel did not have concurrent jurisdiction with the MERC to decide the § 8.1 issue, that “collateral estoppel is not appropriate where, as here, primary jurisdiction has been given by the [Legislature to an administrative agency,” that any conflict between the panel’s and the merc’s rulings could be resolved by judicial review, and that the evidence failed to establish that § 8.1 adversely affected fire fighter safety. We agree.
The merc — and not an Act 312 arbitration panel— has authority to implement the pera,
AFSCME, Council 25 v Wayne Co,
n
The union also contends that the merc’s decision is not supported by the evidence. MCL 423.216(e); MSA 17.455(16)(e) provides that the “findings of the [MERC] with respect to questions of fact if supported by competent, material, and substantial evidence on the record considered as a whole shall be conclusive.” See also Const 1963, art 6, § 28. In
Detroit Police Officers Ass’n v Detroit,
It is important to note that § 8.1 governs the number of fire fighters on duty per shift, not the number actually assembled at a fire scene. The number at the scene determines what action may safely be undertaken to combat a blaze and may include not only on-duty personnel but also off-duty fire fighters called in, volunteers, and those responding pursuant to mutual assistance pacts with other fire departments. Consequently, the evidence in this case fails to demonstrate a causal nexus between the city’s proposed reduction in daily staffing and fire fighter safety, and the union’s contention that reducing the number of fire fighters on duty would adversely affect safety is without merit. Even if a reduction in the daily staff would delay response to a fire, that affects the level of fire *527 protection offered the citizens of Jackson and does not raise a safety issue with respect to fire fighters. Sufficient evidence therefore exists to support the merc’s decision and order. 1
We affirm the merc’s March 20, 1996, decision and order, vacate the arbitration panel’s December 6, 1994, award, and vacate the Jackson Circuit Court’s June 12, 1995, order affirming the arbitration award and its February 2, 1996, injunction requiring the city to comply with that award. No costs, a public question being involved.
Notes
We need not discuss the distinction, if any, between issues “related to” safety and those “inextricably intertwined” with it,
Detroit v Detroit Fire Fighters Ass’n, Local 344, IAFF,
