NSSGA members recognize that the Earth's resources, upon which all life depends, are finite, and that wise environmental stewardship is necessary today to preserve the potential for a quality life for future generations. NSSGA members believe that wise environmental stewardship is good business, and good for business.


NSSGA members invest in extensive dust control systems to protect the environment. NSSGA member products, such as crushed stone, are used to control air emissions from power plants and other industrial sources.


NSSGA members work diligently to conserve and protect valuable water resources both for human consumption and aquatic habitats. NSSGA products are used in water supply and wastewater treatment, as well as in public works infrastructure.


The removal of aggregates temporarily disturbs the landscape. However, once the materials have been extracted, NSSGA members reclaim the land into wetlands, wildlife habitats, parks and many other beneficial purposes.


NSSGA members identify sustainability as a business approach that integrates environmental stewardship, social responsibility and economic prosperity to ensure the long-term supply of aggregate materials to society. NSSGA members sustain the communities in which they operate by providing raw materials as natural building blocks for quality of life. NSSGA members maintain adequate aggregates resources in locations that minimize the life cycle impacts of the resource’s extraction, delivery and use. NSSGA members believe in being good neighbors by creating wildlife habitats and supporting local schools and other community institutions and efforts.

GHG Emissions Calculator

This protocol is intended to assist NSSGA member aggregate producers and pulverized mineral producers calculate emissions of greenhouse gases (GHG) in an accurate, consistent and verifiable manner. The GHG inventories provide emission baselines and are a useful tool for evaluating options for reducing GHG emissions. The GHG emissions data compiled based on this inventory protocol can help NSSGA member companies inform stockholders and public stakeholders concerning GHG emissions and emission reduction programs.

Download the NSSGA Protocol Excel Document to Calculate GHG emissions.

• Download Instructions PDF


Latest Environmental News

  • Fall Regulatory Agenda Released

    The Trump administration released its updated agenda of pending regulations and ongoing regulatory rollbacks. The agenda does not include all expected actions, but it does provide projected dates on agency priorities for the coming year. The deadlines listed are dependent on numerous factors and rules, and actions can be delayed. Major Environmental Protection Agency (EPA)…

    Posted 12/10/19 at 11:42 AM

  • WOTUS Replacement Rule Comments Due April 15

    NSSGA member companies have until April 15 to submit comments that support a clearer Waters of the U.S. (WOTUS) rule. The comment period for the U.S. Environmental Protection Agency (EPA) and U.S. Army Corps of Engineers (Corps) proposed WOTUS “replacement” rule is open until April 15. It was released in December 2018 but the federal government…

    Posted 2/20/19 at 11:06 AM

NSSGA encourages its members to strive for excellence in environmental affairs and to provide leadership by example through demonstrating environmental stewardship in all aspects of their operations. NSSGA believes that environmental laws and regulations should be based on sound scientific, engineering and medical research and on established scientific, engineering and medical principles. To this end, NSSGA works with lawmakers and regulators and makes available the expertise of its members, staff and research facilities to help shape the nation’s environmental policies.

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