As part of the California Office of Traffic Safety's "Click It or Ticket" campaign, police cited 348 people for seatbelt violations between May 12 and last Sunday. There were an additional 67 citations for vehicle code violations, police said.
No arrests were made during the enforcement efforts in Berkeley, but police towed nine cars for driver's license violations.
The program was funded by a $10,000 grant that covered officers working more than 100 hours to enforce seatbelt laws, police said.
"Though the formal program may be over, we will still be out there every day, reminding the community of the importance of seatbelt usage ... as painful as that may be for them at times because seatbelts save lives," Berkeley police Officer Kevin Reece said in a prepared statement.