In order to allow for variations incident to proper grading and handling in each of the following grades, the following tolerances, by count, based on a minimum 50-count sample, except when packages contain less than 50 fruit, a minimum 25-count sample shall be examined, (when packages contain less than 25 fruit adjoining packages shall be opened to obtain the 25-count minimum sample), are provided as specified:

U.S. Fancy, U.S. Extra No. 1, and U.S. No. 1 grades—(1) For defects at shipping point. 1 8 percent for nectarines which fail to meet the requirements of the specified grade: Provided, That included in this amount not more than 4 percent shall be allowed for defects causing serious damage, including in this latter amount not more than one-half of 1 percent for nectarines which are affected by decay.

1 Shipping point, as used in these standards, means the point of origin of the shipment in the producing area or at port of loading for ship stores or overseas shipment, or, in the case of shipments from outside the continental United States, the port of entry into the United States.

For defects en route or at destination. 12 percent for nectarines which fail to meet the requirements of the specified grade: Provided, That included in this amount, not more than the following percentages shall be allowed for defects listed:

8 percent for permanent defects;

6 percent for defects causing serious damage, including therein not more than 4 percent for serious damage by permanent defects and not more than 2 percent for decay.

For color—(i) U.S. Fancy grade. 10 percent for nectarines in any lot which fail to meet the requirements of the grade.

U.S. Extra No. 1 grade and when specified in connection with a grade. Individual containers may contain not more than 10 percentage points less than the required percentage of nectarines showing the amount of color specified for the grade: Provided, That the entire lot averages not less than the required percentage of nectarines showing the specified color for the grade.

U.S. No. 2 grade—(1) For defects at shipping point. 1 8 percent for nectarines which fail to meet the requirements of the grade: Provided, That included in this amount, not more than 4 percent shall be allowed for sunscald, decay, or serious damage by insects or heat injury, including in this latter amount not more than one-half of 1 percent for nectarines which are affected by decay.

For defects en route or at destination. 12 percent for nectarines which fail to meet the requirements of the grade: Provided, That included in this amount not more than the following percentages shall be allowed for defects listed:

8 percent for permanent defects including therein not more than 4 percent for sunscald, or serious damage by insects or heat injury; and

2 percent for decay.