(a) By examination for damage on the segment walls from and after the time when the oranges were first exposed to freezing temperatures to the date, herein designated as date A, when the director, after survey, shall make a determination in writing that the drying process has developed to such extent as to furnish additional evidence of the extent of actual damage to the fruit.

(b) By examination of the exposed pulp on a transverse cut through the center, from and after the date, herein designated as date B, when the director, after survey, shall make a determination in writing that the drying process has developed to such extent as to permit reasonably accurate determination of the full extent of freezing damage by such examination, without regard to damage on the segment walls.

(c) Either by examination for damage on the segment walls or by examination of the exposed pulp on a transverse cut through the center, or by both such examinations, during the period from date A to date B. In no event shall the interval from date A to date B exceed three weeks.