If I have a valid Green Card that is cut in half (still readable if taped together); Can I still use it to travel?

According to USCIS, you will need to replace your green card if your previous card was mutilated or destroyed. If you have a question about whether or not you will be permitted to travel with a damaged card, you should make an appointment at your local USCIS office. CITATION, ""When to replace a green card"" section) http://www.uscis.gov/green-card/after-green-card-granted/replace-green-card"