Pesticide classes, regulation

And yet, this left the six classes of pesticides which contained detectable levels of N-nitrosamines and had to be regulated. The moratorium on these pesticides still remains in force until a policy has been established. The Agency also could not ignore that some regulatory action might have to be taJten on those pesticides that are already registered and contain detectable levels of nitroso impurities. 

Part 158 in Title 40 of the Code of Federal Regulations was finalized in 1984 (14). In the final rule, the term Biorational Pesticide was dropped and the term Biochemical and Microbial Pesticides was adopted to describe this class of pest control agents (Figure 4). The general characteristics of biochemical and microbial pesticides remained essentially unchanged. 

Most of the carbamate pesticides are used in agriculture as insecticides, fungicides, herbicides, nematocides, and growth regulators. Also, diey ate used as biocides in industry and greenhouses, and latterly for vector control. This class of synthetic pesticides includes over 50 compounds with the generic formula ... 

This book discusses in some detail the various purposes of requirements for labeling in the chemical industry indentification, warning, instruction, and so forth. In most cases—drugs, consumer products, transportation of hazardous materials—labeling requirements are expected to serve one or more of these purposes. It is safe to say, however, that in no case is labeling as central to the function of a class of chemicals nor as intertwined with their regulation as it is with pesticides. 

Certain carbamates, such as, aldicarb and methomyl are classified by the U.S. EPA under Restricted Use Pesticides (RUP) because of their high acute toxicity to humans. Such RUP may only be purchased and used by certified applicators. Also, several carbamates are designated by the U.S. EPA as class P acutely toxic hazardous wastes. These compounds listed below in Table 45.1 are regulated under the category of discarded commercial chemical products, off-specification species, container residues and spills thereof. 

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