Professional engineer certificate with Guam PE stamps and seals, surrounded by colorful pens and pencils, displaying the official Guam professional engineer license seal.

All engineers conducting business in Guam are required to use Guam PE stamps or seals that conform to the standards set out by the licensing board. The official seal of the Board must consist of the Guam territory seal, surrounded by the phrase “Territorial Board of Registration for Professional Engineers, Architects, and Land Surveyors".

Obtaining a Seal

When you become registered as a professional engineer in Guam, you will be required to obtain a seal as described above. In addition to the above information Guam PE stamps and seals must also include your registration number and your discipline. As an example, your seal would read “Professional Engineer” followed by the word “Civil,” “Mechanical,” “Electrical” or “Structural” in brackets.

Using the Guam PE Stamps and Seals

In Guam, you can use a rubber stamp in addition to, or instead of, your seal. The seal has to leave a permanent mark on any document that you’re sealing, including blueprints, drawings, original tracings, reports, specifications, and any other documents that you might prepare in your capacity as a professional engineer. In addition, your signature must appear next to the seal, along with the phrase "This work was prepared by me or under my direct supervision".

Any time that you are filing a document with a government agency, or presenting it to a client, your Guam PE stamp or seal must be present. This certifies that all reports, plans, design information, calculations, and drawings were either done by you, or done under your direct supervision.

The signature and seal must be present on not only original copies, but also on tracings or other documents that can be reproduced, so that when they are reproduced, your signature and seal will also appear.

If the project is residential, the seal will be placed wherever the documents contain more than a single sheet. The title page must be signed and sealed by anyone who was involved in the work, and by anyone who directly supervised and was responsible for the work. Each sheet must also be signed by the person responsible for it. If a firm has performed the work, then each sheet must be signed by the registrant who did the work, and the title page must be signed by the person who was in charge of the work.

If the work was done outside of the registrant’s permanent location, the seal can only be used if that registrant actually supervised the work full time and directly.

Temporary Permits

If a registrant of another state is working under a temporary permit in Guam, then the Guam PE stamps and seals will not be used. Instead, the registrant will use the seal of his or her state, and include a copy of the temporary work permit authorizing him or her to work in Guam.

Guam PE Stamps and Seals

Acorn Sales Company Incorporated has a full range of products available to help ensure that you are in full compliance with the laws of the Territory of Guam as they relate to professional engineering. These products include:


  • Long reach seal embossers
  • Extended long reach seal embossers
  • Desk seal embossers
  • Soft seal embossers
  • Self-inking stamps
  • Slim pre-inked stamps
  • MaxLight pre-inked stamps
  • Regular hand rubber stamps

To learn more about the requirements for Guam PE stamps and seals, visit the Guam Board of Registration for Professional Engineers, Architects, and Land Surveyors website.

Frequently Asked Questions

What are the Guam PE stamp requirements for professional engineers?

A Guam PE stamp or seal must include the Guam territory seal, the phrase “Territorial Board of Registration for Professional Engineers, Architects, and Land Surveyors,” your registration number, and your discipline, such as Civil, Mechanical, Electrical, or Structural. It must also be used in a way that creates a permanent mark on the documents being sealed.

When do I need to use a Guam PE stamp or seal?

You need to use your Guam PE stamp or seal any time you are filing engineering documents with a government agency or presenting them to a client. This includes plans, drawings, reports, specifications, calculations, blueprints, and other work prepared by you or under your direct supervision.

Can I use a rubber stamp instead of an embossed Guam PE seal?

Yes. In Guam, you may use a rubber stamp in addition to, or instead of, a seal. The important part is that the stamp or seal must leave a permanent mark on the documents and meet all required formatting and identification rules.

Does my signature have to be on the same page as the Guam PE seal?

Yes. Your signature must appear next to the seal, along with the statement: “This work was prepared by me or under my direct supervision.” This applies to original documents and reproduced copies as well.

What are the rules for sealing residential engineering documents in Guam?

For residential projects with more than one sheet, the title page must be signed and sealed by everyone who was involved in the work and by anyone who directly supervised and was responsible for the work. Each sheet must also be signed by the person responsible for it.

Can an out-of-state engineer use a Guam PE stamp while working under a temporary permit?

No. If an engineer from another state is working in Guam under a temporary permit, they should use their home state seal and include a copy of the temporary work permit. Guam PE stamps and seals are not used in that situation.

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