Following completion of the entire project as described in the notice of rebate commitment, the rebate recipient must apply for payment by submitting a standard request form together with a project completion certificate, a copy of an invoice from the contractor and/or material supplier, information regarding any financial assistance received from the applicants' utility company, documentation of in-kind expenses such as wage schedules and time sheets, if applicable, and/or proof of payment in the form of a receipt or copy of a cancelled check.

Except as provided in subdivision (c) of this section, the amount of the rebate paid to the recipient by the Energy Office shall be the lesser of the amount stated in the notice of rebate commitment or 50 percent of the actual costs incurred in implementing the project.

Where an applicant has sought or received a financial incentive from its utility company for the same measures identified in the notice of rebate commitment, the amount of the Energy Office rebate shall be reduced to limit the combined payments to no more than 100 percent of the completed project cost.