Online access is based on an annual fee and allows use by one user. Customised models for a larger number of users are available on request.

When you place your first order, you will receive an advance invoice from us. After receipt of payment, we will send you an e-mail for registration. BGL online use is automatically extended for a further year if it is not cancelled before the end of the subscription year with a notice period of 3 months.

In addition to the book edition and the online version, BGL 2020 is also available as csv data set for importing into your company's own software. If you are interested, please send an e-mail to bgl@bauverlag.de.