Regarding as-built drawings and stamps

After the project is completed, the preparation of as-built drawings and the affixing of stamps are usually carried out by design firms with the appropriate qualifications. As-built drawings should accurately reflect the actual state of the project upon completion, including any changes or adjustments made to the design drawings. 1. **Preparation of as-built drawings**: Generally, the engineering design firm or the firm that made changes to the design during the construction process is responsible for preparing the as-built drawings. This is because they are most familiar with the original design intent and any adjustments made during the construction process. 2. **Sealing of as-built drawings**: The sealing of as-built drawings usually requires the signatures of the design firm, the construction company, and the supervision agency. This indicates that all three parties confirm that the as-built drawings are consistent with the actually completed work. 3. **Standard Basis**: - In accordance with regulations such as the \"Regulations on Quality Management of Construction Projects\" and the \"Unified Standards for Quality Inspection of Construction Projects\", as-built drawings must be prepared in compliance with the standards and specifications applicable to construction projects, and must be reviewed and approved by the relevant responsible entities. - Relevant regulations also require that the as-built drawings be approved by entities such as those responsible for construction, design, implementation, and supervision, in order to ensure the quality and safety of the project. In summary, the preparation of as-built drawings and the affixing of seals should be carried out by a qualified professional team in accordance with **standards and regulations, to ensure project quality and clarify relevant responsibilities. .

Look at the contract – what does it stipulate, how is it handled?

It depends on what the contract stipulates; this relates to the issue of fees. How can one work for free if no payment is given! Generally speaking, in the petrochemical industry, it is usually the design firms that prepare the as-built drawings. Petrochemical companies pay these design firms relatively high fees, which include the cost of preparing such as-built drawings ； In most other chemical industry entities, it is the construction companies that provide the as-built drawings; such companies tend to pay lower design fees to the design firms, and this cost is not included. Ultimately, it depends on whether there are any provisions specified at the time the contract is signed.

After the completion of a project, the preparation of as-built drawings and the stamping of as-built seals are very important steps; they play a key role in ensuring the legitimacy of the project and its subsequent maintenance. Below are detailed answers to these two questions: The as-built drawings are an important part of the completion archives for construction projects; they are a necessary condition for the completion inspection of a project, and they also serve as a basis for the maintenance, management, renovation, and expansion of such projects. Therefore, the preparation of as-built drawings should be carried out by professional technicians or organizations. Construction unit: Usually, the as-built drawings are prepared by the construction unit. As the direct participants in the construction process, the construction units have the deepest understanding of the actual conditions of the project, which enables them to prepare as accurate as possible as-built drawings. At the same time, the construction contractor also possesses the necessary professional skills and personnel to ensure the quality and accuracy of the as-built drawings. Design unit: In some cases, the design unit may also be involved in the preparation of as-built drawings. Especially when there are many or complex design changes, the expertise and experience of the design firm are crucial to ensuring the accuracy of the as-built drawings. However, in most cases, the design unit is primarily responsible for providing the basis and guidance for design changes, while the actual preparation of as-built drawings remains the responsibility of the construction contractor. In summary, it is more appropriate for the construction contractor to prepare the as-built drawings. However, regardless of who prepares them, it is necessary to ensure the accuracy and completeness of the as-built drawings in order to truly reflect the actual conditions of the project. Who is the best person to stamp the as-built drawing? The completion stamp is an important indicator of the legality and validity of completion drawings; therefore, it should be applied by entities or individuals with the appropriate qualifications and authority. Construction unit: The construction unit shall be responsible for affixing the completion seal. In accordance with relevant regulations, after preparing the as-built drawings, the construction unit shall conduct internal review and confirmation before stamping them with the as-built drawing seal. The completion stamp should be placed in the blank space above the icon bar, using indelible ink and a durable writing material. Supervision unit: In addition to the construction unit, the supervision unit should also stamp the as-built drawings. As the supervisor of construction projects, the supervision unit bears significant responsibility for the quality and safety of the projects. Therefore, stamping the as-built drawings is also a way for the supervision unit to fulfill its responsibilities. The supervision unit shall, after reviewing the as-built drawings and confirming that they meet the relevant requirements, affix its seal. It should be noted that the stamping of the as-built drawing seal must be carried out in strict accordance with relevant regulations and procedures; random stamping or omission of the stamp is not permitted. At the same time, the design and content of the completion stamp should also comply with relevant standards and requirements to ensure its legality and validity. Standard basis: The preparation and stamping of as-built drawings shall be carried out in accordance with **relevant regulations and standards. Specifically, the following standards can be referred to as a basis: the \"Regulations on the Management of Construction Project Documents\": these regulations set out specific requirements for the preparation, collection, organization, and archiving of construction project documents, including requirements regarding the preparation and stamping of as-built drawings. \"Code for Archiving Construction Project Documents\": This code specifies the scope of documents to be archived, the requirements for archiving, and the procedures for archiving. It also sets out corresponding requirements for the preparation and stamping of as-built drawings. Requirements from local construction administration authorities and urban construction archives management departments: Different regions may have specific requirements regarding the preparation and stamping of as-built drawings; therefore, it is also necessary to refer to the relevant regulations set by local construction administration authorities and urban construction archives management departments. In summary, the preparation and stamping of as-built drawings must be carried out in strict accordance with **relevant regulations and standards to ensure their legality and validity. At the same time, all relevant parties should also enhance communication and cooperation to jointly ensure the quality and accuracy of the as-built drawings.