Except as provided in subsection (d) of this section, by January 1, 1995 each unit, and each easily removable rechargeable battery contained in a product, sold in the State shall be covered by a unit management program approved by the Department. A unit management program may be submitted by or on behalf of any person having responsibilities under this subtitle. A unit management program shall: Provide the name, address and telephone number of each responsible entity; Describe the units and products which each responsible entity shall ensure will be collected and transported under the program; and Generally describe the unit management program including methods of unit collection, transportation, and recycling or proper disposal. A unit management program shall be submitted to the Department prior to the sale of any unit, or of any product with an easily removable rechargeable battery, by a marketer in this State which takes place after December 31, 1994. Any change in a responsible entity, address or telephone number, covered units or products, or disposition of units under a unit management program shall be reported to the Department within 90 days after the change takes place. Notwithstanding subsection (a) of this section, nothing in this subtitle may be construed to prohibit the sale to an original equipment manufacturer by a cell manufacturer of a cell not covered under a unit management program.