Is 'Do Not Duplicate' on a key legally enforceable?
Rekeying & Keys · Answered by Lightning Lock & Key, Truckee–Tahoe’s locksmith since 1996.
The short answer
No — it's a request with no legal force, and most kiosks will copy the key anyway. Real key control requires a restricted keyway.
The full picture
Restricted blanks aren't sold to the public, so duplication requires dealer authorization. That's the enforced version of what the stamp only wishes for.
Every situation has its wrinkles — a two-minute call gets you a straight answer for yours, and phone estimates are always free: (530) 308-6643.
Related questions
People also ask
What's the difference between rekeying and changing locks?
Rekeying changes the pins inside your existing lock so a new key works and old keys die — a fraction of replacement cost. Changing locks swaps the hardware entirely. Full answer →
Should I rekey after buying a home?
Yes — immediately. Sellers, agents, stagers, inspectors and a decade of contractors may hold keys. Rekeying every exterior door restores key control for modest cost. Full answer →
Can one key open every door in my house?
Usually yes — same-brand locks can typically be keyed alike, and mixed brands can often be matched or economically swapped to allow it. Full answer →
Straight answers from the Truckee–Tahoe locksmith — since 1996.
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