In the context of this report, NIPP stands for National Infrastructure Protection Plan. From the Executive Summary: "The Chemical Sector converts raw materials into more than 70,000 diverse products and is a major component of the U.S. economy, contributing approximately 25 percent of the Nation's gross domestic product (GDP). The Chemical Sector employs nearly 800,000 workers who manufacture, store, and transport chemicals to customers in multiple critical infrastructure sectors. About 96 percent of U.S. goods in 2013 were manufactured using Chemical Sector products, making uninterrupted chemical production and transportation essential for national and economic security. […] The majority of chemical manufacturing, transportation, storage, and warehousing facilities are privately owned and operated. Because of their potential health and safety hazards, chemicals must be carefully managed from manufacturing to end use in research, pharmaceutical, agricultural, petrochemical, and water treatment applications, to name a few. With facilities, suppliers, and end users located around the globe, Chemical Sector operations are vulnerable to a variety of disruptions stemming from natural disasters, extreme weather, cyberattacks, biohazards, and pandemics. Local or regional disruptions to critical suppliers can cause cascading disruptions across geographic regions and in multiple industries. Owners and operators should secure their products from theft and diversion for use in chemical or explosive weapons. The Chemical Sector now faces increasingly sophisticated cyber adversaries and a growing concern among operators of insider threats. Owners and operators also find it difficult to accurately characterize the likelihood of known threats to a specific facility, making it difficult to prioritize security measures."
Department of Homeland Security: https://www.dhs.gov/