Seattle emergency medical technicians (EMTs) have rejected a contract offer from their employer, setting the stage for a potential strike if negotiations continue to stall.

The EMTs, who belong to Teamsters Local 763 and work for American Medical Response (AMR), voted 310-46 to reject the latest contract offer from the company, according to the union. The city of Seattle contracts with AMR for EMT service. The contract vote also authorized the union’s bargaining team to call a strike, according to Teamsters Local 763 Business Agent Liz Brown.

Union members are seeking better pay and health insurance, said EMT John Moore. Teamsters Local 763 represents about 450 EMTs and paramedics, according to the union.

“All we’re looking for is just the ability to live and coexist and do our jobs,” Moore said, citing increasing costs of living in Seattle that he said are pushing EMTs to live farther from the city. “People can’t call this a career.”