1. If the engineer's work is limited to preparing the design for the building or installation, or a part thereof, they shall be liable for defects that are attributable to the design or construction they have prepared, but not for defects attributable to the method of execution. 2. If the engineer's work is limited to supervising the execution, or a part thereof, they shall be jointly liable, with the contractor, for execution defects that occur under their supervision.
Interpretation and application must be checked against the official text and current version.