If you have a HIT up already that isn't being done, cancel it. Go here and click on Edit next to your survey project.

Go to the very bottom and click Advanced >>

This should open up Worker Requirements. Click remove next to every criteria until you can't remove any anymore. Click clear next to the remaining row.

In that row, choose Location, then is one of, then choose Canada then scroll down to the United States, hold your CTRL button, and click United States. Scroll back up to Canada to make sure both are selected.

Now click Add another criterion.

In the row that appears, select HIT approval rate, then greater than or equal to, then 98.

Now click Add another criterion.

In the row that appears, select number of HITs approved, then greater than or equal to, then 1,000.

click Design Layout - a warning will pop up telling you you're not using Masters, just click okay.

Click Preview, then Finish. Now click Publish Batch and go through and publish your HIT.