The first time you login to the new CPSU/CSA Member Portal you will need to reset your password. 
To do this, use the Forgot password? link below the Sign In button.You will be prompted to enter your Username (Your CPSU/CSA Member ID), and you will then be sent a secure password reset link to your primary email.

Sign In

This Portal is for CPSU/CSA members.
If you're not a member yet, you can sign up here