Colorado engineer embossing a stamp on white paper, meeting Colorado engineering seal requirements.

The Colorado engineer embossing seal is approved by the State Board of Licensure for Architects, Professional Engineers, and Professional Land Surveyors. Under Section 12-25-117(1), the seal may be the rubber stamp type, computer generated, or the crimp type.

Requirements and Specifications for the Colorado State Engineer Seal

The diameter for the Colorado engineer embossing seal should have an outer circle of 1 and 5/8 inches in diameter, while the inner circle should be 15/16 inches in diameter. Located in the center of the inner circle needs to be the license number of the engineer to whom the seal belongs. Furthermore, the word “number” should not be located anywhere on the seal. If a seal has been obtained prior to June 1, 2005, it is still allowed to be used and is acceptable under Colorado law.

A Colorado engineer embossing seal has to be applied to the final reports, or the final electronic record of the following documents:


  • Every sheet of engineering drawings
  • The cover, title page, and table of contents
  • The title or signature page
  • The title page of details

Use of Signatures Alongside Your Seal

On every document, whether it is hard copy or electronic, the licensee’s signature as well as the date of signature must be present. This can be done electronically or manually, but they must be visible through the Colorado engineer embossing seal.

In the case of unfinished documents, the signing engineer must write a note describing the report as a preliminary one. Some examples of this type of note would be “for review,” “for bid only,” or “not for construction.”

Differing Responsibilities for Various Disciplines

Once a document has the Colorado engineer embossing seal affixed to it by the engineer, the engineer becomes responsible for the report. The licensee is allowed to set limits on the seal with certain disciplines. Two examples of these would be structural engineer or a civil engineer. The licensed engineer must have a written statement next to the Colorado engineer embossing seal that shows the scope of responsibility of the document.

The Colorado engineer embossing seal is available for purchase through various vendors online. A wide range of products are available to fit the engineer’s personal tastes, as well as the working environment for ease of use. No matter which type of Colorado engineering embossing seal is chosen, it must meet the requirements stated above.

Frequently Asked Questions

What are the Colorado engineer embossing seal requirements?

Colorado engineer embossing seals must meet the state’s approved specifications under Section 12-25-117(1). The seal may be a rubber stamp, computer-generated, or crimp type, and it must have an outer circle of 1 5/8 inches and an inner circle of 15/16 inches. The engineer’s license number must appear in the center, and the word “number” should not be included on the seal.

Where must a Colorado Professional Engineer seal be applied?

A Colorado Professional Engineer seal must be applied to final reports or the final electronic record of engineering documents. It should also appear on every sheet of engineering drawings, the cover or title page, the title or signature page, and the title page of details when applicable. This helps confirm the document is complete and properly reviewed.

Does my signature and date need to be included with the Colorado engineer seal?

Yes. Every document, whether hard copy or electronic, must include the licensee’s signature and the date of signature along with the Colorado engineer embossing seal. Both must be visible and properly associated with the sealed document to stay compliant with state requirements.

Can I use a Colorado engineer seal for preliminary or unfinished documents?

Yes, but unfinished documents must be clearly marked as preliminary. Common wording includes “for review,” “for bid only,” or “not for construction.” This helps prevent confusion and shows that the work is not a final sealed deliverable.

What happens when I seal a document as a Colorado licensed engineer?

Once a Colorado licensed engineer affixes their seal to a document, they become responsible for that report or drawing. If the seal is used on work for a limited discipline, such as structural or civil engineering, the engineer must include a written statement that clearly defines the scope of responsibility.

Are older Colorado engineer embossing seals still valid?

Yes. If a Colorado engineer embossing seal was obtained prior to June 1, 2005, it is still allowed to be used and is acceptable under Colorado law. However, any seal used today must still meet the state’s rules for placement, required information, and overall compliance.

Acorn Sales Advantages

Made in USAMade in USA
6 Month Stamp Warranty6 Month Stamp Warranty
Free Electronic SealsFree Electronic Seals
FAST 1 Day TurnaroundFAST 1 Day Turnaround
State Board GuaranteeState Board Guarantee
Safe and Secure ShoppingSafe and Secure Shopping