(Facebook Photo/Tucson Police Department)

PHOENIX — The union representing Tucson police officers is challenging the city’s decision to require employees to get the coronavirus vaccine.

The Arizona Daily Star reports that the lawsuit filed Monday by the Tucson Police Officers Association alleges the policy breaches its labor contract “by unilaterally enacting the ordinance without first bargaining in good faith over the change in working conditions” and asks a court to declare the mandate to be illegal.

In a 6-1 vote last Friday, the council decided to make vaccinations mandatory for nearly 4,500 city employees, including about 760 in the police department.

The new ordinance will require all unvaccinated employees to provide proof of at least their first vaccine dose by Aug. 24 or face a five-day suspension.

However, the mandate won’t go into effect if 750 unvaccinated employees submit proof of at least their first vaccination by Aug. 20.

In addition to the five-day suspension, unvaccinated employees could be subject to weekly testing requirements, more stringent mask-wearing guidelines, travel restrictions and eligibility restrictions for certain assignments.

City Manager Michael Ortega maintains Tucson has a duty to keep a safe workplace for employees and may compel them to get vaccinated or to get regular testing.

The ordinance exempts certain employees with medical conditions and sincerely held religious beliefs from the mandate.