Unions representing more than 1,200 construction workers at the Sellafield site have agreed to enter into talks with a mediator.
Workers voted in favour of industrial action last week after a 10 month dispute over health and safety concerns.
Unite and GMB say that their issue is not with Sellafield Ltd, but with the NAECI managers contractor.
They have warned that if their safety concerns are not addressed by NAECi, they will ballot for strike action once more.
Unions that represent more than 1,200 construction workers at Sellafield will meet today to decide what type of industrial action will be taken at the site.
Unite union says the move follows a 10 month dispute over health and safety, and a disagreement over the employment of a full-time shop steward.
Sellafield says the workers are contractors, employed by other companies, and that their actions won't affect site operations or safety
The RMT rail union are warning of a bleak year ahead for the railways.
They say fare rises coupled with the ongoing saga of the West Coast Mainline and the threat of industrial action, could mean an upset to rail services in the coming year.