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<form accept-charset="UTF-8" action="https://search.us-cert.gov/search" class="hidden-lg hidden-md searchbox" method="get"><input name="utf8" type="hidden" value="✓"><input id="affiliate-mobile" name="affiliate" type="hidden" value="cisa">
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TLP:WHITE
TLP:WHITE
 1. Cybersecurity    >
 2. Information Sharing    >
 3. Traffic Light Protocol (TLP) Definitions and Usage


INFORMATION SHARING

 * Automated Indicator Sharing (AIS)
 * Cyber Information Sharing and Collaboration Program (CISCP)
 * DHS-approved vendors that offer AIS TAXII client compatible certificates
 * Enhanced Cybersecurity Services
 * Information Sharing and Analysis Organizations
 * TLP Definitions and Usage


TRAFFIC LIGHT PROTOCOL (TLP) DEFINITIONS AND USAGE

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CISA uses TLP according to the FIRST Standard Definitions and Usage Guidance.

Expand All Sections


INTRODUCTION

The Traffic Light Protocol (TLP) was created in order to facilitate greater
sharing of information. TLP is a set of designations used to ensure that
sensitive information is shared with the appropriate audience. It employs four
colors to indicate expected sharing boundaries to be applied by the
recipient(s). TLP only has four colors; any designations not listed in this
standard are not considered valid by FIRST.

TLP provides a simple and intuitive schema for indicating when and how sensitive
information can be shared, facilitating more frequent and effective
collaboration. TLP is not a “control marking” or classification scheme. TLP was
not designed to handle licensing terms, handling and encryption rules, and
restrictions on action or instrumentation of information. TLP labels and their
definitions are not intended to have any effect on freedom of information or
“sunshine” laws in any jurisdiction.

TLP is optimized for ease of adoption, human readability and person-to-person
sharing; it may be used in automated sharing exchanges, but is not optimized for
that use.

TLP is distinct from the Chatham House Rule (when a meeting, or part thereof, is
held under the Chatham House Rule, participants are free to use the information
received, but neither the identity nor the affiliation of the speaker(s), nor
that of any other participant, may be revealed.), but may be used in conjunction
if it is deemed appropriate by participants in an information exchange.

The source is responsible for ensuring that recipients of TLP information
understand and can follow TLP sharing guidance.

If a recipient needs to share the information more widely than indicated by the
original TLP designation, they must obtain explicit permission from the original
source.


DEFINITIONS

Color When should it be used? How may it be shared?  TLP:RED 

Not for disclosure, restricted to participants only. Sources may use TLP:RED
when information cannot be effectively acted upon by additional parties, and
could lead to impacts on a party's privacy, reputation, or operations if
misused. Recipients may not share TLP:RED information with any parties outside
of the specific exchange, meeting, or conversation in which it was originally
disclosed. In the context of a meeting, for example, TLP:RED information is
limited to those present at the meeting. In most circumstances, TLP:RED should
be exchanged verbally or in person.  TLP:AMBER 

Limited disclosure, restricted to participants’ organizations. Sources may use
TLP:AMBER when information requires support to be effectively acted upon, yet
carries risks to privacy, reputation, or operations if shared outside of the
organizations involved.  Recipients may only share TLP:AMBER information with
members of their own organization, and with clients or customers who need to
know the information to protect themselves or prevent further harm. Sources are
at liberty to specify additional intended limits of the sharing: these must be
adhered to.  TLP:GREEN 

Limited disclosure, restricted to the community. Sources may use TLP:GREEN when
information is useful for the awareness of all participating organizations as
well as with peers within the broader community or sector. Recipients may share
TLP:GREEN information with peers and partner organizations within their sector
or community, but not via publicly accessible channels. Information in this
category can be circulated widely within a particular community. TLP:GREEN
information may not be released outside of the community.  TLP:WHITE 

Disclosure is not limited. Sources may use TLP:WHITE when information carries
minimal or no foreseeable risk of misuse, in accordance with applicable rules
and procedures for public release. Subject to standard copyright rules,
TLP:WHITE information may be distributed without restriction.


USAGE


HOW TO USE TLP IN EMAIL

TLP-designated email correspondence should indicate the TLP color of the
information in the Subject line and in the body of the email, prior to the
designated information itself. The TLP color must be in capital letters:
TLP:RED, TLP:AMBER, TLP:GREEN, or TLP:WHITE.


HOW TO USE TLP IN DOCUMENTS

TLP-designated documents should indicate the TLP color of the information in the
header and footer of each page. To avoid confusion with existing control marking
schemes, it is advisable to right-justify TLP designations. The TLP color should
appear in capital letters and in 12 point type or greater.

RGB:
TLP:RED : R=255, G=0, B=51, background: R=0, G=0, B=0
TLP:AMBER : R=255, G=192, B=0, background: R=0, G=0, B=0
TLP:GREEN : R=51, G=255, B=0, background: R=0, G=0, B=0
TLP:WHITE : R=255, G=255, B=255, background: R=0, G=0, B=0

CMYK:
TLP:RED : C=0, M=100, Y=79, K=0, background: C=0, M=0, Y=0, K=100
TLP:AMBER : C=0, M=25, Y=100, K=0, background: C=0, M=0, Y=0, K=100
TLP:GREEN : C=79, M=0, Y=100, K=0, background: C=0, M=0, Y=0, K=100
TLP:WHITE : C=0, M=0, Y=0, K=0, background: C=0, M=0, Y=0, K=100

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