; (B) more than 50 individual beverage containers returned by any 1 person during any 1 day, if the retailer occupies a space of less than 5,000 square feet in a single area; or (C) a beverage container if the retailer has not offered that category of beverage container for sale within the 180-day period preceding the attempted return. (d) Notice Any requirements established under subsections (b) and (c) shall be posted in each area where beverage containers are received on a clearly visible and legible sign. (e) Refund value The refund value for a beverage container shall be not less than 10 cents for each beverage container. 12004. Administration (a) In general The Administrator shall ensure that— (1) consumers are able to return redeemable beverage containers to retailers or redemption centers; and (2) redemption centers and retailers are able to return beverage containers to distributors and distributor cooperatives. (b) Regulations (1) In general Not later than 2 years after the date of enactment of this subtitle, the Administrator shall promulgate regulations to carry out this subtitle. (2) Review required In promulgating or revising regulations pursuant to paragraph (1), the Administrator shall— (A) review the minimum refund value established under section 12003(e) not less frequently than once every 5 years; and (B) revise that value as the Administrator determines to be appropriate. (c) Accounting (1) In general Not later than August 1 of each calendar year, using the beverage container return data provided in section 12002(a)(8), the Administrator shall— (A) calculate for the previous calendar year the percentage of beverage containers returned for the refund value specified by material type; and (B) post the percentages on the website of the Environmental Protection Agency. (2) Requirements The Administrator shall calculate return data under paragraph (1)— (A) for each distributor cooperative; (B) for each distributor or importer that does not participate in a distributor cooperative