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.
Throughout history, coal has been used as an energy resource, primarily burned for the production of electricity and heat, and is also used for industrial purposes, such as refining metals.