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unique serial number application

DraftDraft definitions, under editorial review. Informational content is not legal advice.

This entry is a cited research draft and has not been verified. Where it overlaps a core glossary term, the core definition applies.

DraftCalifornia administration

The Unique Serial Number Application, or USNA, is California DOJ’s administrative program for state-assigned firearm identification numbers under Penal Code sections 29180 through 29185. [1] DOJ’s program page addresses unserialized firearms and firearm precursor parts, eligibility review, and associated identification requirements. [1] The program’s purpose concerns identification and administration; its published statutory references are separate from the assault-weapon definitions in sections 30510 and 30515. [1][2] A serial-number record and an item’s classification under those definitions are therefore different legal questions. [1][2]

  1. 1. California DOJ: Unique Serial Number Applicationretrieved 2026-10-04
  2. 2. California Penal Code: Assault weapon definitionsretrieved 2026-10-04

Informational only, not legal advice.

See also

  • assault weapon (California definition)Draft

    A statutory classification with more than one route to definition: Penal Code section 30510 identifies designated semiautomatic firearms, while section 30515 adds classifications based on firearm category, magazine arrangement, listed characteristics, capacity and length.

About this glossary

This entry is one of 153 defined terms in the CalGunHub glossary of California and federal firearm-law vocabulary. The 11 core terms are short plain-English definitions; the extended terms are cited research drafts, labelled as drafts, with their statutory sources listed under each entry. Every definition here is informational only and is not legal advice.

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Sources retrieved Oct 4, 2026Informational only, not legal adviceDraft entry pending editorial review

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