40 CFR § 158.1736 - Lice.

---
identifier: "/us/cfr/t40/s158.1736"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 158.1736 - Lice."
title_number: 40
title_name: "Protection of Environment"
section_number: "158.1736"
section_name: "Lice."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "E"
subchapter_name: "PESTICIDE PROGRAMS"
part_number: "158"
part_name: "DATA REQUIREMENTS FOR PESTICIDES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "7 U.S.C. 136-136y; 21 U.S.C. 346a."
regulatory_source: "72 FR 60957, Oct. 26, 2007, unless otherwise noted."
cfr_part: "158"
---


# 158.1736 Lice.

(a) *General.* The table in this section applies to human lice. The product labeling claim determines the required test species. The required test species for a labeling claim appears in paragraph (b) of this section. The required performance standards appear in paragraph (c) of this section.

(b) *Test species.* For products making a claim against lice, the required test species for a labeling claim appear in the following table.

Table 1 to Paragraph **(b)**—Required Test Species for Products Making a Claim Against Lice

| Labeling claim | Required test species |
| --- | --- |
| Lice | Testing on one of the following species is required:Head louse () OR Body louse (). |

(c) *Performance standards.* For labeling claims against lice, a performance standard of 100 percent is required.