All campus bus service is provided by the Capital Area Transportation Authority (CATA). Service is available 24 hours a day, 7 days a week during Fall and Spring Semesters. CATA operates ten on-campus fixed routes serving all University apartments, residence halls, commuter lots, and the main campus. Additionally, CATA provides direct service to off-campus apartments in the Lansing, East Lansing, Okemos and Haslett areas year-round.

Seven routes serve campus M-F starting at 7:00 AM. Services as late as 2:30 AM with some routes concluding earlier in the evening. On the weekends, three routes provide service across campus 9:00-2:30 AM. At 2:00 AM each night, service is also available upon request. (See Night Owl service.)