---
kind: "section"
citation: "21 C.F.R. § 573.780"
title: "21"
number: "573.780"
heading: "Polyethylene."
url: "https://uscodex.org/cfr/21/573.780"
---

# §573.780. Polyethylene.

- (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)](/cfr/21/177.1520.md?p=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:
- (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.

## Notes

### Amendments

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

### Authority

Authority: 21 U.S.C. 321, 342, 348.

### Source

Source: 41 FR 38652, Sept. 10, 1976, unless otherwise noted.

### Amendments

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