The Member Benefits Online System (MBOS) allows registered members access to their pension and, if applicable, health benefit account information.
To sign up go to:
http://www.state.nj.us/treasury/pensions/mbosintro.htm
 
Delta Dental Information:

Delta Dental NJ online allows registered members access to their claims and benefits information, and you can also print out your member ID card here:
www.deltadentalnj.com 
 
Click on MEMBERS, BENEFITS CONNECTION, and Register.
Once registered, go back to the MEMBERS, BENEFITS CONNECTION page and log in.  
From here you can print ID cards, and access your account information. Your membership number you will need at the dentist is your social security number, and for security purposes it is not printed on your card. Any dependents you have on the plan will use your social security number as their membership number.

VSP Vision Information:

Similarly, you can access your vision benefits/print Member ID Cards by registering at:
https://www.vsp.com/signon.html <https://www.vsp.com/signon.html>