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NONTOXIC SHOT REGULATIONS FOR HUNTING WATERFOWL AND COOTS IN THE U.S
Current as of Oct 1, 2010
BACKGROUND
The ban on the use of lead shot for hunting waterfowl was phased-in starting with the 1987-88 hunting season. The ban became nationwide in 1991. Nontoxic shot regulations apply only to waterfowl, defined as the family Anatidae (ducks, geese, [including brant], and swans) and coots. Nontoxic shot is defined as any shot type that does not cause sickness and death when ingested by migratory birds.
APPROVED SHOT TYPES
The shot types that are approved as nontoxic for waterfowl hunting in the U.S. are the following.
Approved shot type*
Percent Composition by Weight
Field Testing Device**
Bismuth-tin
97 bismuth, and 3 tin
Hot Shot7***
Iron (steel)
iron and carbon
Magnet or Hot Shot7
Iron-tungsten
any proportion of tungsten, and >1 iron
Magnet or Hot Shot7
Iron-tungsten-nickel
>1 iron, any proportion of tungsten, and up to 40 nickel
Magnet or Hot Shot7
Tungsten-bronze
51.1 tungsten, 44.4 copper, 3.9 tin, and 0.6 iron,
or 60 tungsten, 35.1 copper, 3.9 tin, and 1 iron
Rare Earth Magnet
Tungsten-iron-copper-nickel
40-76 tungsten, 10-37 iron, 9-16 copper, and
5-7 nickel
Hot Shot7 or Rare Earth Magnet
Tungsten-matrix
95.9 tungsten, 4.1 polymer
Hot Shot7
Tungsten-polymer
95.5 tungsten, 4.5 Nylon 6 or 11
Hot Shot7
Tungsten-tin-iron
any proportions of tungsten and tin, and >1 iron
Magnet or Hot Shot7
Tungsten-tin-bismuth
any proportions of tungsten, tin, and bismuth.
Rare Earth Magnet
Tungsten-tin-iron-nickel
65 tungsten, 21.8 tin, 10.4 iron, and 2.8 nickel
Magnet
Tungsten-iron-polymer
41.5-95.2 tungsten, 1.5-52.0 iron, and
3.5-8.0 fluoropolymer
Magnet or Hot Shot7
* Coatings of copper, nickel, tin, zinc, zinc chloride, and zinc chrome on approved nontoxic shot types also are approved. ** This column is for information only, it is not regulatory. *** The HOT*SHOT field testing device is from Stream Systems of Concord, CA.
ADDITIONAL INFORMATION
Further information on lead poisoning in waterfowl can be found at the following web site:
http://www.npwrc.usgs.gov/resource/othrdata/pbpoison/pbpoison.htm#contents
Last updated: June 1, 2009
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