Fixtures purchased for federally funded construction or renovation projects may be subject to Buy American Act or Build America Buy America Act requirements, which mandate that iron, steel, manufactured products, and construction materials be produced in the United States. Importers and contractors should verify the applicable domestic content thresholds for each project before specifying imported fixtures.

Hazardous-location fixtures are engineered to contain internal ignition sources and are certified to UL 844 or equivalent standards for use in environments with flammable gases or dust. For HTS classification, these fixtures may fall under the same luminaire headings as standard commercial fixtures, but their specialized design and certification documentation are relevant to valuation and, in some cases, to export-control screening for dual-use industrial environments.