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, the first of the fossil fuels to make its presence felt in the modern era, remains a major contributor to the worldâs energy pool. Once burned in chimneys to produce heat, today coal is widely used as fuel for power plants that generate electricity for residential and commercial customers.ossil fuels âcoal, petroleum (oil), and natural gas â are concentrated organic compounds found in the Earthâs crust.