Library: 1204 - NTCIP Environmental Sensor Station Interface Standard

Document Number: Document Type: Document Status: Published:
1204 Device Data Dictionary v01 Superceded; v02 Superceded; v03 Jointly Approved with Errata
Developed By: Environmental Sensor Station Working Group
Point of Contact: E. A. (Gene) Martin, Virginia DOT
MIB Available: Management Information Base is available
Published: Published and available for free download. Click to shopping cart above to register and download the document.
Description of Document:
This standard defines data found in road-weather information stations and air quality sensors.

Document Status:

Date submitted: 10/14/2014

TAKE NOTE OF MULTIPLE VERSIONS -- As of September 2014, the "shopping cart" above initiates the downloading of 1204 v03 for a limited time. The 1204 major version v03r3 now includes test procedures, and Errata pages. The prior 1204 v01 PDF and 1204 v02 PDF are archived, and are available from by request.

To order printed copies of any major version of the standard, point to the mouse-over menu "Deployment" >> Order Standards.

NTCIP MIB files are available for the versions. To request access, see the instructions at Library >> MIBs.

A U.S. DOT ITS Standards "Fact Sheet" is available for this standard; browse to

VERSION v01 -- In 1998, AASHTO, ITE, and NEMA jointly approved NTCIP 1204 v01, which was previously numbered TS_3.7-1998. NTCIP 1204:1998 was version v01.13, dated November 2001. The printed version included the Amendment 1 v02 revisions.

AMENDMENT 1 -- In 1998 and 1999, the ESS WG developed 1204 Amendment 1 to respond to user comments. Amendment 1 was jointly approved in January 2001. NTCIP 1204 v01.12, and subsequent versions, included the Amendment 1 text.

VERSION v02 -- Between 2002 and 2004, the NTCIP ESS WG worked at revising 1204, to include new sections for a concept of operations, functional requirements, dialogs, updated object definitions, a Protocol Requirements List, and a Requirements Traceability Matrix. In April 2006, 1204 v02 was Jointly Approved. In May 2008, the published NTCIP 1204 version v02.24r was available as a PDF download.

VERSION v03 -- This major version revision included the Annex C "Test Procedures." Annex C includes a definition of keywords, a table tracing Requirments to Test Cases, and test procedures for each test case. Adding the test procedures identified other changes, which are summarized in Annex D, Documentation of Revisions.

In October 2008, 1204 v03 was Jointly Approved. In November 2009, the PDF of v03.08r2 could be downloaded from the shopping cart. The v03.08 printed hardcopy edition is also available.

In September 2014, the v03.08 r3 Errata were published. The first shopping cart is the full standard, with the Errata pages inserted after the cover page. The second shopping cart is just the Errata pages. While work is underway on 1204 v04, the errata corrections have not been posted on each page of v03.08.

MULIVERSION INTEROPERABILITY NOTES -- See version v03.08 Annex D.2 and Table 31 for compatibility and impact notes.


The NTCIP 1204 v03 edition's updated MIB file has been posted. A separate file with the reviseable PRL and test procedures will be posted soon.

In August 2013, and continuing to February 2015, the ITS JPO is providing funding for the further revision of 1204 to make major version v04.


What's Available:


      NTCIP Object Definitions for ESS - version 01,
      Date Posted: 5/13/2008 9:18:00 PM
      Document Description: Superseded version; more recent version recommended. Archive copy available on request.
      Archive Filename: 1204v0113c.pdf

      NTCIP ESS Object Definitions - version 02,
      Date Posted: 11/10/2009 4:42:25 PM
      Document Description: Superseded version; more recent version recommended. Archive copy available on request.
      Archive Filename: 1204v0224r.pdf

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