(a) Identity. Polyethylene consists of basic polymers manufactured by the catalytic polymerization of ethylene.

(b) Specifications. (1) For the purposes of this section, polyethylene shall meet the specifications in item 2.1 of § 177.1520(c) of this chapter.

(2) The polyethylene is designed in a pellet form in a configuration presenting maximum angular surface having the following dimensions in centimeters:

0.9 ±0.1 × 0.8 ±0.1 × 1.2 ±0.1

(c) Use. It is used as a replacement for roughage in feedlot rations for finishing slaughter cattle.

(d) Labeling. The labels and labeling shall bear in addition to the other information required by the Act:

(1) The name of the additive “polyethylene roughage replacement.”

(2) Adequate directions for use which shall provide for the administration of one-half pound of polyethylene pellets per head per day for 6 successive days. All natural roughage should be removed for a minimum of 12 hours prior to administration of polyethylene roughage replacement. Roughage replacement must be adequately mixed in the ration for uniform distribution.

[41 FR 38652, Sept. 10, 1976, as amended at 54 FR 18282, Apr. 28, 1989]