Are scanned copies of documents admissible to the SEC and FINRA, and do broker-dealers still need WORM storage after digitizing?

Short answer: scanned copies can absolutely be admissible and acceptable to regulators, but digitizing a paper record does not automatically erase a broker-dealer’s separate obligation to preserve required records in a tamper-resistant format. These are two different questions, and it helps to keep them apart.

Admissibility is about trustworthiness, not paper

Courts and regulators do not reject a record simply because it is a scan rather than an original. Under the rules of evidence, a duplicate is generally treated like the original unless there is a genuine question about authenticity. What matters is whether you can show the record is what you claim it is and that your imaging process was reliable.

Practically, that means documenting:

• A consistent, well-controlled scanning process (capture, quality control, indexing).
• Chain of custody and who handled the record.
• Metadata showing when and how the image was created.
• Reasonable controls against alteration after capture.

A scan produced under a documented, repeatable program is far easier to authenticate than an ad hoc one. Aligning your process with recognized recordkeeping practices strengthens that trustworthiness story.

WORM is a recordkeeping rule, not an evidence rule

For broker-dealers, the relevant SEC and FINRA recordkeeping requirements have historically called for certain books and records to be preserved so they cannot be altered or erased. WORM (“write once, read many”) is the traditional way firms satisfied that non-rewritable, non-erasable standard.

Digitizing paper does not by itself relieve this duty. If a record falls within the categories that must be preserved in a non-alterable form, it must be stored that way regardless of whether it started as paper or was born digital. Recent amendments have allowed an audit-trail alternative to strict WORM media, but the underlying goal is unchanged: the record must be protected against undetected modification or deletion for the required retention period.

The safest approach is to treat admissibility and preservation as complementary: a defensible imaging program supports admissibility, while compliant, tamper-evident storage satisfies the regulatory recordkeeping obligation.

Because the specific rules and retention periods change over time, confirm current SEC and FINRA requirements before destroying any source paper. See more in our digitization and imaging topic hub.