View source for Cancellation

* acoustics
: The destructive interference of two or more sound waves.  Waves of similar frequencies and amplitude, but of opposite phase (180°F) produce mutual cancellation effects. [https://www.acousticsfirst.com/glossary-of-sound-terms Glossary of Acoustic Terms]
* agriculture / environment / political science
# Refers to an action taken under Section 6(b) of the [[Federal Insecticide, Fungicide and Rodenticide Act]] (FIFRA) to cancel a [[pesticide]] registration for one or more specific uses when the [[Environmental Protection Agency]] finds the use results in unreasonable adverse effects to the environment or public health when a product is used according to widespread and commonly recognized practice, or if its labeling or other material required to be submitted does not comply with FIFRA provisions. 
# Refers to Section 6 (b) of the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) which authorizes cancellation of a pesticide registration if unreasonable adverse effects to the environment and public health develop when a product is used according to widespread and commonly recognized practice, or if its labeling or other material required to be submitted does not comply with FIFRA provisions. <br/>Source: [http://www.epa.gov/OCEPAterms/ Terms of the Environment]

[[Category: Agriculture]]
[[Category: Environment]]
[[Category: Political Science]]