20.21—What hunting methods are illegal?

Migratory birds on which open seasons are prescribed in this part may be taken by any method except those prohibited in this section. No persons shall take migratory game birds:
Approved shot type * Percent composition by weight Field testing device **
Bismuth-tin 97 bismuth, and 3 tin Hot Shot®. ***
Iron (steel) iron and carbon Magnet or Hot Shot®.
Iron-tungsten any proportion of tungsten, and ≥1 iron Magnet or Hot Shot®.
Iron-tungsten-nickel ≥1 iron, any proportion of tungsten, and up to 40 nickel Magnet or Hot Shot®.
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 Shot® or Rare Earth Magnet.
Tungsten-matrix 95.9 tungsten, 4.1 polymer Hot Shot®.
Tungsten-polymer 95.5 tungsten, 4.5 Nylon 6 or 11 Hot Shot®.
Tungsten-tin-iron any proportions of tungsten and tin, and ≥1 iron Magnet or Hot Shot®.
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 Rare Earth Magnet or Hot Shot®.
* Coatings of copper, nickel, tin, zinc, zinc chloride, and zinc chrome on approved nontoxic shot types also are approved.
** The information in the “Field Testing Device” column is strictly informational, not regulatory.
*** The “HOT*SHOT” field testing device is from Stream Systems of Concord, CA.
[38 FR 22021, Aug. 15, 1973, as amended at 38 FR 22896, Aug. 27, 1973; 44 FR 2599, Jan. 12, 1979; 45 FR 70275, Oct. 23, 1980; 49 FR 4079, Feb. 2, 1984; 52 FR 27364, July 21, 1987; 53 FR 24290, June 28, 1988; 60 FR 64, Jan. 3, 1995; 60 FR 43316, Aug. 18, 1995; 61 FR 42494, Aug. 15, 1996; 62 FR 43447, Aug. 13, 1997; 64 FR 29804, June 3, 1999; 64 FR 32780, June 17, 1999; 64 FR 45405, Aug. 19, 1999; 64 FR 71237, Dec. 20, 1999; 65 FR 53940, Sept. 6, 2000; 66 FR 742, Jan. 4, 2001; 66 FR 32265, June 14, 2001; 68 FR 1392, Jan. 10, 2003; 69 FR 48165, Aug. 9, 2004; 70 FR 49196, Aug. 23, 2005; 71 FR 4297, Jan. 26, 2006; 71 FR 45986, Aug. 10, 2006; 72 FR 46407, Aug. 20, 2007; 73 FR 65277, Nov. 3, 2008; 73 FR 70914, Nov. 24, 2008; 74 FR 53671, Oct. 20, 2009; 74 FR 57615, Nov. 9, 2009]