NFPA 490: Code for the Storage of Ammonium Nitrate
Current Edition: 2002 Next Edition: Withdrawn

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NFPA 490:
2002 Edition
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This document was withdrawn in Annual 2009 and incorporated into NFPA 400.
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What is NFPA 490?
NFPA 490: Document Scope
1.1.1 This code shall apply to the storage of ammonium nitrate in the form of crystals, flakes, grains, or prills including fertilizer grade as defined by Definitions and Test Procedures for Ammonium Nitrate Fertilizer, dynamite grade, nitrous oxide grade, technical grade, and other mixtures containing 60 percent or more by weight of ammonium nitrate. 1.1.2 This code shall not apply to the transportation of ammonium nitrate. 1.1.3 This code shall not apply to storage under the jurisdiction of and in compliance with the regulations of the U.S. Coast Guard. 1.1.4* This code shall not apply to ammonium nitrate-based blasting agents. 1.1.5 The storage of ammonium nitrate and ammonium nitrate mixtures that are more sensitive than allowed by the Definitions and Test Procedures for Ammonium Nitrate Fertilizer shall not be permitted by this code except on the specific approval of the authority having jurisdiction. 1.1.6 Nothing in this code shall apply to the production of ammonium nitrate or to the storage of ammonium nitrate on the premises of the producing plant, provided that no distinct, undue hazard to the public is created.
Official document scope
What does NFPA 490 address?
Table Of Contents.
NFPA 490, 2002 Edition: Archived Revision Information
Report on Proposals (ROP)
Report on Proposals (ROP)
Proposals can be submitted for text to be amended or included in NFPA Codes and Standards. Following the Call for Proposals period, the responsible Technical Committee or Panel holds a meeting to consider and act on all submitted proposals. The committee or panel may also develop its own proposals. A document known as the Report on Proposals (ROP) is prepared containing all the Public Proposals, Technical Committees' action on each Proposal, as well as all Committee-generated proposals. The ROP for the document in question is submitted for the approval of the responsible TC or Panel by a formal written ballot. If the ROP does not receive approval via written ballot in accordance with NFPA rules, the Report is returned to the committee for further consideration and is not published. If the necessary approval is received, the ROP is published in a compilation of Reports on Proposals issued by NFPA twice yearly for public review and comment, and the process continues to the next step. The ROP is published and widely distributed and anyone may download or request a copy.
Report on Comments (ROC)
Report on Comments (ROC)
Once the ROP becomes available, there is a 60-day comment period during which time anyone may submit a public comment on the proposed changes documented in the ROP. The committee or panel reconvenes at the end of the comment period and acts on all public comments. This committee or panel may also develop its own comments. As before, approval obtained via written ballot in accordance with NFPA's Regulations is required on all committee and panel actions. All of this information is compiled into a second Report, called the Report on Comments (ROC), which like the ROP, is published and made available for public review for a seven-week period.
Archived revision information
NFPA 490, 2002 Edition: Archived Revision Information
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