Intervening in a GAO bid protest can be an important way to protect a federal contractor’s award. But when can you and should you intervene? Here’s how this might come up. As a federal contractor, you work hard to submit the best proposal you can, and then find out you win the award. A few days after, you find out you’ve been protested as part of a GAO bid protest. What are your options for responding to such a protest? Below, I’ll discuss the five things you should know about intervening in a GAO bid protest.