7 CFR § 91.41
Charges for demonstrations and courses of instruction
July 6, 2020
Charges, not in excess of the cost thereof and as approved by the Deputy Administrator, may be made for demonstrations, samples, or courses of instruction when such are furnished upon request.
[58 FR 42415, Aug. 9, 1993, as amended at 65 FR 64314, Oct. 26, 2000]