---
kind: "section"
citation: "46 C.F.R. § 148.205"
title: "46"
number: "148.205"
heading: "Ammonium nitrate and ammonium nitrate fertilizers."
url: "https://uscodex.org/cfr/46/148.205"
---

# §148.205. Ammonium nitrate and ammonium nitrate fertilizers.

- (a) This section applies to the stowage and transportation in bulk of ammonium nitrate and the following fertilizers composed of uniform, non-segregating mixtures containing ammonium nitrate:
  - (1) Ammonium nitrate containing added organic matter that is chemically inert towards the ammonium nitrate; containing at least 90 percent ammonium nitrate and a maximum of 0.2 percent of combustible material (including organic material calculated as carbon); or containing less than 90 percent but more than 70 percent of ammonium nitrate and a maximum of 0.4 percent combustible material;
  - (2) Ammonium nitrate with calcium carbonate and/or dolomite, containing more than 80 percent but less than 90 percent of ammonium nitrate and a maximum of 0.4 percent of total combustible material;
  - (3) Ammonium nitrate with ammonium sulfate containing more than 45 percent but a maximum of 70 percent of ammonium nitrate and containing a maximum of 0.4 percent of combustible material; and
  - (4) Nitrogen phosphate or nitrogen/potash type fertilizers or complete nitrogen/phosphate/potash type fertilizers containing more than 70 percent but less than 90 percent of ammonium nitrate and a maximum of 0.4 percent of combustible material.
- (b) No material covered by this section may be transported in bulk unless it demonstrates resistance to detonation when tested by one of the following methods:
  - (1) Appendix 2, [Section 5](/cfr/46/5.md), of the IMSBC Code (incorporated by reference, see [§ 148.8](/cfr/46/148.8.md));
  - (2) Test series 1 and 2 of the Class 1 (explosive) in the UN Manual of Tests and Criteria, Part I (incorporated by reference, see [§ 148.8](/cfr/46/148.8.md)); or
  - (3) **An equivalent test satisfactory to the Administration of the country of shipment.**
- (c) **Before loading a material covered by this section—**
  - (1) The shipper must give the master of the vessel written certification that the material has met the test requirements of [paragraph (b)](#b) of this section;
  - (2) The cargo hold must be inspected for cleanliness and free from readily combustible materials;
  - (3) Each cargo hatch must be weathertight as defined in [§ 42.13-10](/cfr/46/42.13-10.md) of this chapter;
  - (4) The temperature of the material must be less than 55 °C (131 °F); and
  - (5) Each fuel tank under a cargo hold where the material is stowed must be pressure tested before loading to ensure that there is no leakage of manholes or piping systems leading through the cargo hold.
- (d) Bunkering or transferring of fuel to or from the vessel may not be performed during cargo loading and unloading operations involving a material covered by this section.
- (e) **When a material covered by this section is transported on a cargo vessel—**
  - (1) No other material may be stowed in the same hold with that material;
  - (2) In addition to the segregation requirements in [§ 148.140](/cfr/46/148.140.md) of this part, the material must be separated by a complete cargo compartment or hold from readily combustible materials, chlorates, chlorides, chlorites, hypochlorites, nitrites, permanganates, and fibrous materials; and
  - (3) The bulkhead between a cargo hold containing a material covered by this section and the engine room must be insulated to “A-60” class division or an equivalent arrangement to the satisfaction of the cognizant Coast Guard Captain of the Port or the Administration of the country of shipment.

## Notes

### Authority

Authority: 33 U.S.C. 1602; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; 46 U.S.C. 3306, 5111; 49 U.S.C. 5103; Department of Homeland Security Delegation No. 0170.1.

### Source

Source: 75 FR 64591, Oct. 19, 2010, unless otherwise noted.