You must be have an InterNACHI® account to join, which is free, if you just want limited access. To create an account, go here: www.nachi.org/join. You do not need to be a dues-paying member to obtain guest access.
You must be logged in to register. If you're not an InterNACHI member, you can create a free guest account to sign up.
If you have an InterNACHI username and password, sign in to register (you don't need to be a member).
You need to set up a free guest account before you can register (it only takes a minute).