The contents of the containers shall be collected once every week, by a collector
duly licensed by the city, or more frequently if required by the provisions of any
other section of this Code. Provided, however, occupants of a dwelling unit in the
R-1 or R-2 district, as established by chapter 36, who generate 30 gallons or less of refuse weekly or who request collection of source
separated compostable material (SSCM) between December 1 and April 1, may arrange
for collection not less often than once every 14 days. The collector shall transfer
the contents of the containers to the collector's vehicle without spilling, or if
any spilling occurs, the collector shall clean it up completely. Upon each collection,
the containers shall be completely emptied and the lids of the containers shall be
replaced.