Small business self-certification, a one-year certification which requires annual renewal, is a prerequisite for verification as a Small Diverse Business. Visit smallbusiness.pa.gov for program guidelines, Frequently Asked Questions (FAQs), and step-by-step instructions for the self-certification process.
The main uses for coal are Fuels, Plastics and Electricity.
Coal . Coal has a long history of use as an energy source. It was the fuel of the industrial revolution and although many other energy sources have replaced some of the applications in which coal was used, it still is an important fuel for electrical generation. For more information about the history of fuels consumed for energy generation, go here.