A quick look at local policies
PDF files of construction drawings delivered or uploaded to the platform system by the construction, survey and design units shall conform to the standards of Management Specification for Electronic Documents and Electronic Archives of Construction Projects (CJJ/T117-2017), and shall be stamped with the electronic signatures of the units and the relevant registered or unregistered survey and design personnel undertaking the project.
-Shenyang Urban and Rural Construction Committee
The implementation of digitalization and electronic signature of construction drawings means that survey and design units and construction drawing review institutions deliver or upload construction drawings to the management information platform in the form of "electronic document+electronic signature" according to specific standards and formats.
-Sichuan Provincial Department of Housing and Construction
On the basis of digital audit of construction drawings of municipal housing projects in the whole province, the whole process of digital closed-loop management of drawings is implemented. Drawings stamped with electronic signature and electronic signature have legal effect.
-Gansu Provincial Housing and Construction Department and other ten departments
Contract locking solution
The function of batch seal of contract lock can realize one-click batch initiation, batch seal and batch download of PDF drawings, integrate engineering project management system, realize multi-person online signing of PDF drawings, complete the conversion of PDF format of drawings in CAD software, realize the approval of drawings in business system, identify designers, supervision engineers, auditors and construction units online, review drawings, sign approval opinions, automatically affix qualification seals, seals and registration seals of design institutes and supervision units, and complete drawings efficiently.
Features: the real-name authentication signature of the person in charge of each link, and the operation is undeniable; The signature of drawings shall be traceable to individuals, and the authenticity of the signature shall be verifiable and tamper-proof; Ensure the authority, credibility and efficiency of the drawings in the whole process.