Can we offer a gift card as an incentive to complete and submit our activity evaluation?

The ACCME does not prohibit the use of “modest gift cards for completing an evaluation or as raffles,” so yes, this is an acceptable incentive tool.  Ensure that your organization is only using gift cards in this manner, and that you comply with the ACCME’s Prohibition of Gift Cards or Personal Remuneration Associated with the Purchase of Accredited CME policy (detailed here).