Wyo. Stat. § 35-11-512: Lead acid battery wholesalers.

Any person selling new lead acid batteries at wholesale shall accept, at the point of transfer, in a quantity at least equal to the number of new batteries purchased per year, used lead acid batteries from customers, if offered by customers. A person accepting batteries in transfer from an automotive battery retailer shall be allowed a period not to exceed one hundred twenty (120) days to remove batteries from the retail point of collection.