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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
not for external distribution
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "not for external distribution" is correct and usable in written English.
It is typically used to indicate that a document or information is intended for internal use only and should not be shared outside the organization. Example: "This report contains sensitive information and is marked as confidential, so it is not for external distribution."
✓ Grammatically correct
Advances in Therapy
BMC Systems Biology
TechCrunch
Huffington Post
The New York Times
BBC
Forbes
The Guardian
Alternative expressions(20)
internal use only
not for public release
confidential information
for internal circulation only
restricted distribution
not for dissemination
company confidential
proprietary information
internal circulation only
use only
internal reference only
for private use only
distribution
for staff use only
purposes only
single reference only
for internal use only
for authorized personnel only
for in-house purposes only
solely for internal purposes
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
60 human-written examples
The scale is not for widespread distribution.
Science
We have not accounted for external sources of noise.
Science
Social networks are not for private file distribution.
News & Media
Take the lead from within the organization; don't wait for external condition changes.
News & Media
Many of the cultures are not ready for distribution.
News & Media
I didn't do this for external reasons.
News & Media
"Prescription medicines are not priced for widespread distribution.
News & Media
(4) Don't pay for distribution.
News & Media
He said a not-for-profit system would attract fewer external providers.
News & Media
There are fish bowl gardens set up for external viewing but not to be entered.
News & Media
The investigators did not seek external funding for this project.
Science
Expert writing Tips
Best practice
Use the phrase "not for external distribution" prominently on the document or communication, such as in the header, footer, or subject line, to ensure it is immediately visible.
Common error
Avoid assuming the restriction is obvious. Always explicitly label documents and communications as "not for external distribution" to prevent accidental sharing.
Source & Trust
79%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "not for external distribution" functions as a restrictive modifier. Based on Ludwig AI, it clearly indicates a limitation on who can access or share specific information, documents, or materials. It is used to control the flow of information.
Frequent in
News & Media
25%
Science
25%
Wiki
17%
Less common in
Formal & Business
8%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "not for external distribution" is a phrase used to denote that information should not be shared outside a specific group or organization. Ludwig AI validates that this phrase is grammatically sound and serves to restrict access. While exact occurrences in real-world text are rare, its purpose and meaning are clear and important for maintaining confidentiality. Consider alternatives like "internal use only" for similar effect. Ensure documents are clearly labeled to prevent accidental disclosure. This phrase is suitable for professional and formal contexts.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
internal use only
Specifies use within an organization, implying restriction from external sharing.
do not distribute externally
A direct command to avoid sharing outside the intended group.
for internal circulation only
Similar to "internal use only", specifies use within a group or organization.
not for public release
Indicates the information is not ready or intended for the general public.
restricted distribution
Indicates that access or sharing is limited to specific individuals or groups.
not for dissemination
Formally prohibits the spread of the information.
confidential information
Highlights the sensitive nature of the information, warranting restricted access.
company confidential
Explicitly marks the information as private to the company.
proprietary information
Emphasizes ownership and restricted use due to business or legal reasons.
embargoed
Specifies a time restriction before the information can be released.
FAQs
What does "not for external distribution" mean?
It means that the information, document, or material is intended for internal use only and should not be shared with individuals or entities outside of the organization or group for which it was created.
What are some alternative phrases for "not for external distribution"?
You can use phrases like "internal use only", "not for public release", or "confidential information" depending on the context and the level of restriction required.
When should I use "not for external distribution"?
Use it when you want to ensure that sensitive, proprietary, or private information remains within a specific group or organization and is not disclosed to external parties. This is common for draft documents, financial reports, and strategic plans.
Is it necessary to mark a document as "not for external distribution" if it's already marked as "confidential"?
While "confidential" implies restricted access, explicitly stating "not for external distribution" reinforces the restriction and clarifies the intended scope, especially if "confidential" has varying interpretations within the organization. It adds an extra layer of clarity.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
79%
Authority and reliability
4.1/5
Expert rating
Real-world application tested