Canadians could soon find out if there will be another labour disruption at the national postal operator.
The union representing about 55,000 Canada Post employees has said it is reviewing a set of proposals for urban workers, along with rural and suburban carriers.
The Canadian Union of Postal Workers issued a 72-hour strike notice on Tuesday, and the deadline is Friday at midnight.
Canada Post says the new offers address several concerns, and it is offering a wage increase of 13.59 per cent over four years.
The union says the Crown corporation is seeking to change some hard-fought collective agreement rights and methods, with a key sticking point being a proposal to add part-time workers that would allow for seven-day-a-week delivery.
If postal workers do walk off the job, it would be their second strike in less than six months.