§ 137.71
Records: Commercial agricultural aircraft operator.
(a) Each holder of a commercial agricultural aircraft operator certificate shall maintain and keep current, at the home base of operations designated in his application, the following records:
(1) The name and address of each person for whom agricultural aircraft services were provided;
(2) The date of the service;
(3) The name and quantity of the material dispensed for each operation conducted; and
(4) The name, address, and certificate number of each pilot used in agricultural aircraft operations and the date that pilot met the knowledge and skill requirements of § 137.19(e).
(b) The records required by this section must be kept at least 12 months and made available for inspection by the Administrator upon request.