We have one garbage bag limit per week here in Hamilton. Green and blue bins are picked up once a week as well, you can have as many bins you want, you can pick up a free blue/green bins at certain rec centres.
During this time of the year the city will mail out extra garbage tags, think there's 20. So if you have more than one garbage bag and than slap on a tag and the garbage collectors will take it.
Garbage collectors are both private and public operated. All suburbs and Hamilton Mountain have private garbage collectors while the lower end of Hamilton has public garbage collectors.
You can ask the city to inspect your garbage and blue bins and if they approve you'll get the gold bin.