Article 5
Documentation 1. Without prejudice to Article 6, operators shall ensure that all transactions leading to the placing on the market of scheduled substances of categories 1 and 2 of Annex I are properly documented in accordance with paragraphs 2 to 5 below. This obligation shall not apply to those operators who hold special licences or are subject to special registration pursuant to Article 3(2) and (6) respectively. 2. Commercial documents such as invoices, cargo manifests, administrative documents, transport and other shipping documents shall contain sufficient information to identify positively: (a) the name of the scheduled substance as given in categories 1 and 2 of Annex I; (b) the quantity and weight of the scheduled substance and, where a mixture or natural product is concerned, the quantity and weight, if available, of the mixture or natural product as well as the quantity and weight, or the percentage by weight, of any substance or substances of categories 1 and 2 of Annex I which are contained in the mixture; (c) the name and address of the supplier, distributor, consignee, and, if possible, of other operators directly involved in the transaction, as referred to in Article 2(c) and (d). 3. The documentation must also contain a customer declaration as referred to in Article 4. 4. Operators shall keep such detailed records of their activities as are required to comply with their obligations under paragraph 1. 5. The documentation and records referred to in paragraphs 1 to 4 shall be kept for at least three years from the end of the calendar year in which the transaction referred to in paragraph 1 took place, and must be readily available for inspection by the competent authorities upon request. 6. The documentation may also be kept in the form of reproductions on an image medium or other data media. It must be ensured that the data stored: (a) match the documentation in appearance and content when made readable, and (b) are readily available at all times, can be made readable without delay and can be analysed by automated means for the duration of the period specified in paragraph 5.