SCOMET controls expand specified chemical-processing equipment controls by material and size thresholds under foreign trade policy Substitution of SCOMET Category 3D001 prescribes export controls on specified chemical-processing and containment equipment where surfaces contacting chemicals are made from listed materials and where items exceed stated size, capacity, or performance thresholds; technical notes define carbon-graphite and nominal valve size, and a statement excludes equipment specially designed for civil applications while cautioning against transfers that would defeat controls.