The Office of Sustainability, or such other office or department as may be designated by the Mayor, is called upon to conduct or commission a study of the quantities and frequency of the provision by retail establishments to customers of Single-use Plastic Bags, other plastic bags, non-Recyclable Paper Bags, Recyclable Paper Bags and any other bags before the effective date; six months after the effective date; and one year after the effective date. Any such reports shall be provided to the Chief Clerk of Council and posted on a City webpage within two weeks of finalization of the report.