In order to declare Resource Economics you must attend an Info Session. So, if this is a major on your mind you should attend an Info Session, this Friday, 11/14 at 12:20pm in Stockbridge 303!
In the meantime, explore the "So You Want to Be a Resource Economics Major?" section of the department's website. If you like what you read there and like what you hear at the Info Session, complete an Online Statement of Interest by Wednesday, 11/26 online in order to access spring classes as a Res Ec major.