Do you have a myTRB.org account? If not, guidance for setting up an account is at:
http://onlinepubs.trb.org/onlinepubs/am/2016/MyTRBLogin.pdf
If you have previously attended any TRB event and provided your e-mail address, you are likely already in the system. If not, simply follow the guidance at the link.
Once logged in, select the "Committees" tab along the top and choose "Become a friend of a committee" from the drop down list. Then, at the "Select a Committee" dropdown, click on ABR30 Standing Committee for Emergency Evacuations. That should add you to our list.