To add new users to your account, go to the "Program" tab and click "Add Program User" on the left-hand side of the page. There, you will enter the required/requested information, assign the role(s) you would like that user to have, and then click "Save".
The new user will then get an email from the ASQ Online system inviting them to join your account. Once they've followed the link in the email, the new user will create a password to log in, and they will be all set to work within your ASQ Online account.
To learn more about setting up a new user as a Program Administrator, go to https://www.asqonline.com/help/default.htm?4_2_managing_program_users.htm