Register my bicycle
The Cambridge Police Department is no longer offering bicycle registrations. If you previously registered your bike with CPD, it will remain on file. However, bicyclists are encouraged to register their bikes with the Bike Index.
Contact Us
Contact information for transportation planning staff.
Apply for a Business Certificate
A business certificate must be filed for any person, partnership, or corporation conducting business in Cambridge under a name other than their own.
Crisis Negotiations Unit
The Crisis Negotiations Unit consists of specially trained officers who are prepared to deal with people who have taken someone hostage or have barricaded themselves within a building or similar setting.
Zero Waste Master Plan
The Zero Waste Master Plan will assist serve as a guiding document to help the City achieve it's waste reduction goals.
CPP Enrollment Fair
Join the Cambridge Office of Early Childhood to learn more about the Cambridge Preschool Program (CPP). Families can apply to CPP for the 2027-2028 school year from October 1 through November 13, 2026.