The Lab Directorate invites all Lab employees to join with their colleagues to celebrate the holidays from 3 to 4:30 p.m. in the cafeteria’s dining hall on Wednesday, Dec. 19. Hors d’oeuvres and light refreshments will be provided. Festive attire is encouraged. The cafeteria will close at 1 p.m. that day. Staff are invited to bring nonperishable food items to donate to the Alameda County Food Bank.