A sales history for each grower shall be computed by the committee in the following manner:

For growers with acreage with 6 or more years of sales history, the sales history shall be computed using an average of the highest four of the most recent six years of sales.

For growers with 5 years of sales history from acreage planted or replanted 2 years prior to the first harvest on that acreage, the sales history is computed by averaging the highest 4 of the 5 years.

For growers with 5 years of sales history from acreage planted or replanted 1 year prior to the first harvest on that acreage, the sales history is computed by averaging the highest 4 of the 5 years and in a year prior to a year of a producer allotment volume regulation shall be adjusted as provided in paragraph (a)(6) of this section.

For a grower with 4 years or less of sales history, the sales history shall be computed by dividing the total sales from that acreage by 4 and in a year prior to a year of a producer allotment volume regulation shall be adjusted as provided in paragraph (a)(6) of this section.

For growers with acreage having no sales history, or for the first harvest of replanted acres, the sales history will be the average first year yields (depending on whether first harvested 1 or 2 years after planting or replanting) as established by the committee and multiplied by the number of acres.

In a year prior to a year of a producer allotment volume regulation, in addition to the sales history computed in accordance with paragraphs (a)(3) and (a)(4) of this section, additional sales history shall be assigned to growers using the formula x = (a−b)c. The letter “x” constitutes the additional number of barrels to be added to the grower's sales history. The value “a” is the expected yield for the forthcoming year harvested acreage as established by the committee. The value “b” is the total sales from that acreage as established by the committee divided by four. The value “c” is the number of acres planted or replanted in the specified year. For acreage with five years of sales history: a = the expected yield for the forthcoming sixth year harvested acreage (as established by the committee); b = an average of the most recent 4 years of expected yields (as established by the committee); and c = the number of acres with 5 years of sales history.

A new sales history shall be calculated for each grower after each crop year, using the formulas established in paragraph (a) of this section, or such other formula(s) as determined by the committee, with the approval of the Secretary.

The committee, with the approval of the Secretary, may adopt regulations to change the number and identity of years to be used in computing sales histories, including the number of years to be used in computing the average. The committee may establish, with the approval of the Secretary, rules and regulations necessary for the implementation and operation of this section.

Sales histories, starting with the crop year following adoption of this part, shall be calculated separately for fresh and processed cranberries. The amount of fresh fruit sales history may be calculated based on either the delivered weight of the barrels paid for by the handler (excluding trash and unusable fruit) or on the weight of the fruit paid for by the handler after cleaning and sorting for the retail market. Handlers using the former calculation shall allocate delivered fresh fruit subsequently used for processing to growers' processing sales. Fresh fruit sales history, in whole or in part, may be added to process fruit sales history with the approval of the committee in the event that the grower's fruit does not qualify as fresh fruit at delivery.

The committee may recommend rules and regulations, with the approval of the Secretary, to adjust a grower's sales history to compensate for catastrophic events that impact the grower's crop.