A shop drawing stamp is the mark an architect or engineer places on a contractor’s submittal to record that the document was reviewed, what the contractor should do next, and on what terms. The wording on that stamp matters because it defines where responsibility sits if a fabrication error, a dimensional mistake, or a product substitution later causes a problem on the project.
The Four Status Designations
The disposition on the stamp tells the contractor exactly how to proceed. Four categories cover almost every submittal the Construction Specifications Institute recognizes as standard:
- Approved. The submittal conforms to the design intent. The contractor can order materials and begin fabrication without changes.
- Approved as Noted. The submittal is acceptable as long as the contractor incorporates the reviewer’s written comments. Ignoring those comments voids the approval. No second review cycle is required, which keeps the schedule moving.
- Revise and Resubmit. Problems in the submittal prevent approval. The contractor corrects the issues and runs a new version through the full review process. Nothing should be fabricated or purchased until the revised version clears.
- Rejected. The submittal is fundamentally off-track. This is rare, and it signals that revisions won’t fix it. The contractor needs a different product or method that actually meets the contract.
Individual firms add variations such as “Furnish as Corrected” or “Submit Specified Item,” but the four above are the industry baseline.
Why Reviewers Say “No Exceptions Taken” Instead of “Approved”
Many engineers, and some architects, deliberately avoid the word “Approved” and stamp submittals “No Exceptions Taken.” The distinction is a liability one, not a stylistic one. “Approved” can be read in court as the design professional accepting responsibility for everything in the submittal, including dimensions, quantities, and fabrication details that are contractually the contractor’s problem. “No Exceptions Taken” says something narrower: the reviewer compared the submittal to the design concept and found nothing in conflict with the contract documents.
Under AIA A201-2017 Section 3.12.4, submittals exist to show how the contractor proposes to conform to the design concept. The reviewer’s job does not extend to verifying dimensional accuracy, quantities, installation procedures, or equipment performance. Those stay with the contractor no matter what word appears on the stamp. Firms that use “No Exceptions Taken” are making that boundary harder to argue around later.
What Belongs on the Stamp
A complete review stamp carries three things: the disposition, the disclaimer language, and the identifying information. The identifying fields include the reviewing firm’s name, the name of the individual who performed the review, the name of the professional in responsible charge, the project title, and the date of review. Together these fields create the paper trail that matters during warranty claims and disputes.
The disclaimer language is where the stamp does its heaviest legal work. It typically states that the review checked only for general conformance with the design concept in the contract documents, and that the contractor remains responsible for field measurements, dimensions, quantities, fabrication methods, coordination with other trades, and compliance with the full contract documents. Firms draft this wording to track the scope limits in AIA A201-2017 Section 3.12.4 and the requirements of their professional liability carriers. The exact phrasing varies by office; the message is always the same. The stamp is not a warranty that the submittal is error-free.
What the Stamp Does Not Do
This is where the most expensive misunderstandings happen. An approval stamp does not relieve the contractor of responsibility for errors in their own submittal. AIA A201-2017 Section 3.12.8 is explicit: the contractor is not relieved of responsibility for deviations from the contract documents by the architect’s approval of shop drawings, product data, or samples. A mistake in the shop drawing that the reviewer did not catch is still the contractor’s mistake.
The stamp also does not authorize changes to the contract scope. If a reviewer’s comments describe something the contractor views as new work, the contractor needs to go through the formal change order process. Standard language in both AIA and ConsensusDocs contracts states that approval of a submittal does not authorize changes, deviations, or substitutions from the contract requirements unless the owner gives express written approval.
Means, methods, sequences, safety, and trade coordination also stay with the contractor. AIA A201-2017 Section 3.3.1 places that responsibility squarely on the contractor regardless of the review outcome. A stamp reading “Approved” next to a detail showing a particular installation sequence does not make the architect liable if that sequence proves unsafe.
The Contractor’s Stamp Comes First
Before any submittal reaches the architect or engineer, the contractor has to review and stamp it. Under AIA A201-2017 Section 3.12.5, submittals that are not marked as reviewed and approved by the contractor can be returned by the architect without any action at all. That happens routinely, and it costs schedule time every time it does.
By stamping the submittal, the contractor represents that they have verified materials, confirmed field measurements, and coordinated the information with the rest of the contract documents. That representation carries weight. If a dimensional error later causes a fabrication problem, the contractor cannot point to the architect’s downstream review and shift the blame. Their own stamp already certified those details.
Delegated Design Submittals
Some project elements, such as structural steel connections, precast panels, or curtain wall systems, require the contractor to hire a licensed design professional to complete the final engineering. This is delegated design. The resulting submittals must be sealed and signed by that delegated designer, who is a qualified, licensed, registered professional retained by the contractor or subcontractor.
The project architect or engineer still reviews these submittals, but their review stays within the usual scope: conformance with the design concept in the contract documents. They are not re-engineering the delegated designer’s work. A delegated design shop drawing that arrives without the delegated designer’s seal should be treated as informational only. The project’s design professional carries liability for the overall project functioning as a whole; the delegated designer carries liability for their specific design elements. The two professionals usually have no direct contractual relationship, which makes the stamps and seals the only formal record connecting their respective responsibilities.
How Courts Read the Stamp
When a dispute reaches litigation, courts look at the specific language on the stamp to decide whether the design professional exceeded their intended scope of review. The disclaimer language exists for exactly this reason. A stamp that clearly limits the review to design conformance gives the design professional a strong defense against claims that they should have caught the contractor’s dimensional errors or fabrication mistakes.
That protection has limits. When a design professional’s conduct falls below the standard of care, the stamp language will not save them. The standard of care is the level of skill and diligence that other professionals in the same field would exercise under similar circumstances. In one well-known New York case, an engineer was held liable for approving a manufacturer’s shop drawings that introduced incompatible metals into the design. The court found that failing to investigate the manufacturer’s qualifications and the use of dissimilar metals was professional negligence, and the disclaimer on the stamp did not change the result.
The takeaway for anyone drafting, applying, or receiving a shop drawing stamp is the same. The stamp allocates review responsibility; it does not transfer the underlying duty each party already owes. Say what was reviewed, say what was not, and keep the record clean.