This final rule makes amendments to regulations for the Pima Agriculture Cotton Trust Fund (Agriculture Pima Trust Fund) and the Agriculture Wool Apparel Manufacturers Trust Fund (Wool Trust Fund) programs. This final rule makes minor changes to the Department of Agriculture's administration of the Wool Trust Fund, required by section 12603 of the Agriculture Improvement Act of 2018. Statutory changes were made with respect to two of the four types of payments available under the Wool Trust Fund, the Refund of Duties Paid on Imports of Certain Wool Products (Wool Duty Refund program) and the Payments to Manufacturers of Certain Worsted Wool Fabrics (Wool Grant program). In addition, new regulatory language is required to update the payment expiration calendar year and for submission of affidavits that apply to all four payments made available under the Wool Trust Fund. This final rule also makes minor changes to the Department of Agriculture's administration of the Agriculture Pima Trust Fund per section 12602 of the Agriculture Improvement Act of 2018. New regulatory language is required for updating the payment expiration calendar year and to include information in the required affidavit of yarn spinners.