The Authority shall receive the complete application documents and verify the information and authenticity of the certificates and/or certificates. Once all prerequisites for the subject matter have been proven, the authority shall prepare the certificate of expertise and a fee notice. Upon receipt of payment, the authority shall send the certificate of expertise to the person making the application. You need the new certificate of expertise (SKN) in card format since 26.11.2015. The application must be made online. (Please get help in the circle of friends or acquaintances if you can't cope on the Internet). Further information can be viewed via the tile of the competent federal state. Proof of expertise can be applied for with or without registration. After that, the mandatory fields must be filled in with the information on the applicant. After entering the security code, you will be taken to the application page. Enter the application type here. The type of application "submission" includes the sale of plant protection products. Once you have confirmed your knowledge of German and you have been recognised for your data protection declaration, you can upload your copies of your certificates, such as an assistant's letter or a certificate of expertise. Finally, you submit the request via the appropriate button. After submitting your data, a short information will appear on the online portal as to whether your application has been successfully submitted. You will not receive a separate email or further confirmation. It is not necessary to additionally send the application signed by post. Alternatively, if you cannot upload the certificate yourself, send a copy by post to the relevant department. Experts (persons who acquired their expertise for the use of plant protection products before 6 July 2013) or new experts whose degree is more than 3 years ago require, in addition to the certificate, proof of participation in a recognised training course in plant protection. If all documents are complete, the application will be processed within 4 to 6 weeks. You will receive a notice and an invoice for 30 euros (for foreign certificates 40 euros). The sending of the certificate of expertise can take up to 2 months from payment. In addition to applying for a certificate of expertise, you must take part in a 4-hour training course during a recurring 3-year period.