The introduction of regulatory requirements and compliance checks will only be successful if societal support is given. Enforcement against the mainstream will be costly and ineffective. Voluntary schemes can be useful in preparing the public for requirements to come and to test new methods of quality control. This fact sheet presents the so-called Building Services Systems Declaration developed by and introduced in the Austrian Province of Salzburg. The scheme is regulatory-based but goes beyond regulatory requirements. Meeting the requirements will be rewarded by the housing subsidy scheme operated by the Province of Salzburg.