How can I opt out of a mission?

If you accept a Mission and you aren't able to complete it, there is no penalty for not participating. You may opt out of a Mission by clicking on your “My Missions” tab at the top of your page and clicking on the mission you’d like to opt out of. 

The only missions that you are required to complete will be the final report in a Sampling or Hosted party that you have already accepted. If you opt out of a Sample or Hosted Party Mission AFTER you have already been accepted, you will receive a flag.