The technical definitions for combustible dust vary. In Canada, the Hazardous Products Regulation (WHMIS 2015) defines combustible dust as  a mixture or substance that is in the form of finely divided solid particles that, upon ignition, is liable to catch fire or explode when dispersed in air.
Some rewards from employee incentive contests are exempt from income tax. Such rewards must be tangible personal property, for example, material goods that are for personal use and that are not deductable from the companyâs operating costs. Such rewards are not classified as income, but only up to the value of $1,600.
FICA, which stands for Federal Insurance Contribution Act, is a tax that is paid by employees as well as their employers, and is often referred to as the payroll tax. The purpose of the FICA tax is to fund the Social Security and Medicare programs, which provide benefits to American retirees. What is FICA? FICA is the U.S. federal payroll tax, designed to help fund the Social Security and Medicare programs. As of 2017, about 171 million people work and contribute FICA taxes.