ROCHESTER — Join Great Bay Community College for a Tri-Chambers Business After Hours on Tuesday, Feb. 20 to showcase its Advanced Technology & Academic Center at 5 Milton Road, Rochester.

This is also an opportunity for members of the Dover, Rochester and Somersworth chambers to network with fellow chamber members. Bring plenty of business cards. Hors d'oeuvres will be provided. The event is 5 to 7 p.m. There is no charge to attend for chamber members.