Bus drivers in the Unite union at Brighton and Hove Bus and Coach Company have voted by a large majority to take strike action in a consultative ballot over pay.
Unite has been in dispute over the pay deal since December. Unite members are angry at the tiered system that means several different pay rates at the company.
Drivers are also angry that the company is advertising for new drivers at a pay rate not agreed with the union.
Management's original offer would have meant a 'rise' of just 1.1 percent for new drivers. Workers have rejected this and subsequent offers at six or seven meetings according to Unite officials.
Unite regional organiser Sharon Wentworth said that at the last meeting members 'gave us a strong mandate to reject the offer and to take industrial action'. Average drivers' pay at the company is around £358 a week.