52. A holder of a Class D permit shall keep a use register for Class 1 to Class 3 pesticides, as well as account books. He shall also keep the related vouchers.
The register, account books and vouchers shall indicate his name, address and permit number and, for each use, at least the date, information and signatures referred to in subparagraphs 3 to 6 of the second paragraph of section 51.
In the case of a holder of a Subclass D1 permit, the registers, account books and vouchers shall also indicate the information provided for in the third paragraph of section 51. The holder of a Subclass D1 permit shall hold and keep the card provided for in the fourth paragraph of section 51.