A: If our reader lives in a confirmed residential zone, then semitruck parking is not allowed on a city street there according to the San Bernardino Municipal Code, SBMC 10.16.120 (A), said Jeff Kraus, city spokesperson. If the semitruck is in a commercial zone, it can be park there for two hours on a city street, SBMC 10.16.120 (B), Kraus said.