Can a key marked “Do not duplicate” be copied?

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A key stamped with “Do not duplicate” or some variation of that phrase is copyable by a locksmith under specific circumstances. The individual ordering the duplicates have to provide us with a written request on their company letterhead. The request must contain the following information.

  • Identifying markings on the key to be reproduced
  • The number of copies requested
  • The name of the agent who will take delivery of the duplicates
  • The name and contact information of the letter’s author


Whoever takes delivery of the copies must complete a Request For Restricted Keys application. Lock Smith Profy retains the authority to refuse to replicate keys marked “Do Not Duplicate.”