On Material Design for Bootstrap's Privacy Page you can request and collect all the privacy and GDPR related information that Material Design for Bootstrap is providing.
The privacy policy by is a legal document or statement that discloses how Material Design for Bootstrap gathers, uses, discloses, and manges their customers' data.
The basis for MDB sharing, adding, uploading, hosting, accessing or sending personal data out of Europe. Vendors can also add a description of their own impact assessment for data transfers.