Actual production history (APH) is the unit's record of crop yield by crop year for the APH base period. The APH base period consists of ten crop years of actual yield, T-yield, assigned yield, and zero credited yield, immediately preceding the crop year for which an approved yield is calculated in accordance with this part. APH will be used, except as otherwise indicated in this part, as the basis for providing noninsured crop disaster assistance.

[71 FR 13744, Mar. 17, 2006]