### Question
How does the law define highly toxic?


### Answer
Under *15 U.S.C. § 1261*, **highly toxic** is defined as:

> any substance which falls within any of the following categories: (a) Produces death within fourteen days in half or more than half of a group of ten or more laboratory white rats each weighing between two hundred and three hundred grams, at a single dose of fifty milligrams or less per kilogram of body weight, when orally administered

#### Citation:
  - *15 U.S.C. § 1261*
  - Heading: **CHAPTER 30-HAZARDOUS SUBSTANCES**

