Authorisation of rail vehicles Share Contact us Twitter Google Facebook Use the form if you... have any questions about our up-coming procurements or construction projects, please contact us. If you want to subscribe to the newsletter, please sign up.Business news Customer Service Monday to Friday 8 a.m. to 4 p.m. For traffic information and issues that requires immediate attention, we are open all hours. Tel: +46 (0)771 921 921 Message: * Who do you want to send your mail to, select here: Supplier Support Your E-mail: Add e-mail if you like an answer. From 25 May 2018, the General Data Protection Regulation (GDPR) becomes the law in all EU Member States relating to personal data. Read more about your rights pursuant to the GDPR. Skip to: For authorisation of rail vehicles please contact Transportstyrelsen.